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-.

The pre-fix in- can also have 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.

— adequate
— regular
— demanding
— true
— patriotic
— accessible
— logical
— responsible
— acceptable
— tolerant
— active

— permanent
— disputed
— coherent
— legal
— possible