Antonyms for "fast"
4 kid-friendly opposites of fast, perfect for writing and vocabulary work.
What does "fast" mean?
moving with great speed Knowing the antonyms of fast helps kids write comparison sentences and understand contrast in stories.
🦓 Opposite words for fast
Click any antonym to look it up:
How to use antonyms in writing
Antonyms are powerful in three writing situations:
1. Contrast sentences — "The room was fast, but the hallway was slow." Comparing opposites makes descriptions vivid.
2. Character development — Two characters with opposite traits (one fast, one slow) create natural tension in a story.
3. Editing for variety — If you've used fast three times in a paragraph, swap one for an antonym to vary your writing.
FAQ — antonyms for fast
What is the opposite of fast?
The most common antonym for fast is slow. Other opposites include sluggish, leisurely, gradual.
Are there different antonyms for fast at different grade levels?
Yes — younger kids learn the simplest opposite first (slow). Older students can pick more precise antonyms depending on context.
What is a synonym for fast?
A common K-2 synonym is quick. See the full synonyms page →
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