Negative Prefixes -make a noun, verb, adverb, & adjective negative
We all know English can be tough. That’s why we write the Easy English blog! If you need to learn English online, this is the perfect place for you. This week, we’re looking at negative prefixes in English.
A prefix is a few letters at the beginning of a word. It can change the meaning of the word. Negative prefixes make the meaning of the word negative or have the contrary meaning.
Here are some tips to make words negative in English:
Here are all the negative prefixes in English:
a-, dis-, il-, im-, in-, ir-, non-, un-.
Each of these prefixes goes together with certain (special, individual) words. You cannot change which prefix you use with which word.
Normally, you use a prefix with an adjective (descriptive word) to change its meaning. Or you can use the word not before the adjective. It would mean the same thing.
- Adjective – cool
- Negative adjective – uncool
- Not + adjective – not cool
There is no difference in meaning between ‘uncool’ and ‘not cool.’ However, you will sound more fluent and natural if you use “right word” with a prefix.
Here are how to use the prefixes to make words negative. You should learn these negative words by heart (memorize, learn), because there is not always rhyme or reason (rule, sense, formula) to them!
words that take a- as a prefix always begin with a consonant.
- apolitical (not political)
- asexual (not sexual)
- asocial (not social)
words that use dis- as a prefix can begin with a vowel (the letters a, e, i, o, u) or a consonant (the rest of the letters!).
- disagree (to not agree)
- discomfort (not comfortable)
- disassemble (not assemble (put together))
words that take il- as a prefix always begin with the letter l.
- illegal (not legal)
- illogical (not logical)
- illiterate (not literate (not able to read))
Words that use the im- prefix always begin with an b, m, or p.
- imbalanced (not balanced)
- imperfect (not perfect)
- immortal (not mortal (cannot die))
- impossible (not possible)
Words that use the in- prefix can begin with a consonant or a vowel (except for i or u)
- inaccurate (not accurate (correct))
- insane (not sane (crazy))
- indecent (not decent (fine))
Words that use the ir- prefix always begin with the letter r.
- irrational (not rational (logical))
- irregular (not regular)
- irresistible (not resist (stop yourself))
Words that begin with non- can begin with a consonant or a vowel, and are sometimes hyphenated.
- non-profit (not for profit)
- non-fiction (not fiction)
- nonsense (has no sense)
Words that begin with un- can begin with a consonant or a vowel.
- unconfirmed (not confirmed (agreed, fixed)
- uninteresting (not interesting)
- unhelpful (not helpful)
Pro Tip: Just because a word starts with one of these prefixes doesn’t always make it negative.
If you see a new word with one of these prefixes, it may be the negative prefix of a word, but it may not! Don’t be afraid to ask what it means or look in a dictionary- it may mean something different than you think. That’s ok, though! We’re all here to learn.
Why not try some of these negative prefixes in the comments? We’ll let you know how you did!
Did you like this blog? Share it with others! Let us know what YOU think!
Erin Duffin lives in Hamburg, is an English teacher, blogger, yoga instructor, and finds these negative prefixes insanely irresistible!
Sign up for our FREE weekly English Blog: