How to Use the Opposite of ‘increase’ in Writing
If you need to express a decrease, reduction, or decline in your writing, the most direct opposite of “increase” is “decrease.” You can use “decrease” as both a verb (“Sales decreased”) and a noun (“a decrease in demand”). However, the best choice depends on your tone, context, and whether you are writing a formal report, an email, or a casual message. This guide explains how to choose and use the right opposite of “increase” in real writing situations.
Quick Answer: The Opposite of ‘increase’
The most common and direct opposite of “increase” is decrease. Use “decrease” when you want to say that something becomes smaller, fewer, or less in amount, size, or intensity. Other useful opposites include reduce (to make something smaller), decline (to become weaker or fewer), drop (a sudden fall), and fall (a downward movement). Your choice depends on formality and the type of writing you are doing.
Understanding the Core Opposite: Decrease
“Decrease” works in almost any situation where “increase” is the original word. It is neutral in tone and fits both formal and informal writing. Here is how it compares to “increase”:
| Word | Part of Speech | Example Sentence |
|---|---|---|
| Increase | Verb / Noun | The company increased its prices. |
| Decrease | Verb / Noun | The company decreased its prices. |
Notice that the sentence structure stays the same. You simply replace “increase” with “decrease.” This makes it easy for learners to switch between the two words without changing the grammar of their sentence.
Formal vs. Informal Tone
Different opposites of “increase” carry different levels of formality. Choosing the right one helps your writing sound natural and appropriate.
Formal Writing (Reports, Business Emails, Academic Work)
In formal contexts, use “decrease,” “decline,” or “reduce.” These words sound professional and precise.
- Decrease – “The budget decreased by 15% this quarter.”
- Decline – “There was a steady decline in customer satisfaction.”
- Reduce – “We need to reduce operational costs immediately.”
Informal Writing (Emails to Colleagues, Casual Conversation)
In less formal settings, you can use “drop,” “fall,” or “go down.” These are common in everyday speech and friendly emails.
- Drop – “The temperature dropped suddenly last night.”
- Fall – “Sales fell after the holiday season.”
- Go down – “The price of gas went down this week.”
Comparison Table: Opposite Words for ‘increase’
| Word | Formality | Best Used In | Example |
|---|---|---|---|
| Decrease | Neutral / Formal | Reports, emails, essays | We saw a decrease in errors. |
| Reduce | Formal | Instructions, policies, plans | Reduce your screen time. |
| Decline | Formal | Trends, statistics, health | Interest in the topic declined. |
| Drop | Informal | Conversation, casual writing | The stock dropped sharply. |
| Fall | Informal | News, daily talk | Prices fell after the announcement. |
| Go down | Very informal | Spoken English, text messages | My energy levels go down after lunch. |
Natural Examples in Different Contexts
Here are real-life examples showing how to use the opposite of “increase” in writing for different situations.
Business Email (Formal)
Subject: Update on Project Costs
Dear Team,
We have successfully reduced our material expenses by 12% this month. This decrease is due to better supplier negotiations. Please review the attached report for details.
Best regards,
Maria
Casual Email to a Friend
Subject: Gym update
Hey Sam,
My weight finally went down a little this week. I also noticed my stress levels dropped after I started sleeping earlier. Let’s catch up soon!
Take care,
Jake
Academic Writing
“The study found a significant decline in test scores among students who did not attend regular classes. This decrease was consistent across all age groups.”
News Report
“Oil prices fell by 3% today following the announcement of increased production. Analysts expect a further drop next week.”
Common Mistakes When Using the Opposite of ‘increase’
Even advanced learners sometimes make errors. Here are the most frequent mistakes and how to fix them.
Mistake 1: Using ‘decrease’ with the wrong preposition
Incorrect: “The number decreased with 10%.”
Correct: “The number decreased by 10%.”
Always use “by” before a percentage or amount when talking about how much something decreased.
Mistake 2: Confusing ‘decline’ with ‘decrease’ in tone
“Decline” often suggests a gradual or natural process, while “decrease” is more neutral. For example, “His health declined” sounds natural, but “His health decreased” sounds odd. Use “decline” for trends that happen over time, especially in health, interest, or quality.
Mistake 3: Using ‘drop’ in very formal writing
Incorrect in a formal report: “The revenue dropped dramatically.”
Better: “Revenue decreased significantly.”
Save “drop” for emails, conversations, and informal updates.
Mistake 4: Forgetting that ‘reduce’ is transitive
“Reduce” always needs an object. You reduce something.
Incorrect: “The cost reduced.”
Correct: “We reduced the cost.” or “The cost decreased.”
Better Alternatives for Specific Situations
Sometimes “decrease” is not the best word. Here are more precise opposites of “increase” for specific contexts.
When talking about speed or rate
Use slow down or decelerate.
Example: “The car slowed down as it approached the curve.”
When talking about intensity or strength
Use weaken or lessen.
Example: “The storm weakened overnight.”
When talking about size or volume
Use shrink or contract.
Example: “The company’s workforce shrank by 20%.”
When talking about value or price
Use depreciate or lose value.
Example: “The car depreciated quickly after purchase.”
Mini Practice: Test Your Understanding
Choose the best opposite of “increase” for each sentence. Answers are below.
1. The number of visitors to the website ___________ last month.
a) increased
b) decreased
c) went up
2. We need to ___________ our electricity usage to save money.
a) increase
b) reduce
c) rise
3. There was a sharp ___________ in temperatures overnight.
a) increase
b) drop
c) growth
4. The company’s profits have ___________ steadily over the last year.
a) increased
b) declined
c) risen
Answers: 1. b, 2. b, 3. b, 4. b
FAQ: Using the Opposite of ‘increase’
1. Can I use ‘decrease’ and ‘reduce’ interchangeably?
Not always. “Decrease” can be used without an object (intransitive), as in “Sales decreased.” “Reduce” always needs an object: “We reduced costs.” Use “decrease” when you want to describe a change without saying who caused it. Use “reduce” when you want to say someone made something smaller.
2. What is the opposite of ‘increase’ in a graph or chart?
In graphs, the opposite of an upward trend is a downward trend. You can say “The line decreased,” “The bar fell,” or “There was a decline.” For a sharp opposite, use “plummet” or “plunge,” but these are dramatic and best for news or strong emphasis.
3. Is ‘lessen’ a good opposite of ‘increase’?
Yes, but “lessen” is less common in business or data writing. It works well for abstract things like pain, stress, or risk. Example: “This medicine will lessen your discomfort.” For numbers and statistics, “decrease” is more natural.
4. How do I choose between ‘decline’ and ‘decrease’?
Use “decline” when you want to suggest a gradual, often negative, change over time. Use “decrease” for any reduction, whether gradual or sudden. For example, “a decline in quality” sounds natural, but “a decrease in quality” is also correct. “Decline” often carries a slightly more negative feeling.
Final Tips for Writing with Opposites
When you write, think about your audience and purpose. If you are writing a formal report for your boss, use “decrease” or “reduce.” If you are texting a friend, “go down” or “drop” is fine. The key is to match the word to the situation. Practice by rewriting sentences that use “increase” and replacing the word with its opposite. This will help you build confidence and sound natural in any context.
For more help with opposite words, explore our Common Opposites section or visit our Writing with Opposites category for additional guides. If you have questions, check our FAQ page or contact us.
