Study the words in italics in the sentences below. They are formed by prefixing un – or in – to their antonyms (words opposite in meaning).

• I was a short boy with rather undistinguished looks. (un + distinguished)
• My austere father used to avoid all inessential comforts. (in + essential)
• The area was completely unaffected by the war. (un + affected)
• He should not spread the poison of social inequality and communal intolerance. (in + equality, in + tolerance)

Now form the opposites of the words below by prefixing un- or in-. It-can also have mefixes like the forms il-, ir-, or im- (for example: illiterate–il + literate, impractical –im + practical, irrational –ir + rational). You may consult a dictionary if you wish.

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