Grade 6 Grammar Lesson 14 Antonyms, synonyms and homonyms
A prefix is something you add at the beginning of a word. It’s possible to make antonyms of many words by adding prefixes.
The usual prefixes we use to make antonyms are: dis- ill- im- in- un- if- ab- de- and mis–
able – disable
literate – illiterate
possible – impossible
correct – incorrect
known – unknown
regular – irregular
normal – abnormal
merit – demerit
understand – misunderstand
