Page 72 - Grammar Grow - 3

E. Prefixes

Sometimes, we add a letter or a group of letters before a word to change its meaning.

Such letters are called prefixes. Common prefixes are un, mis, ir, dis and im. These
prefixes help to form the opposites of words.

• happy — unhappy • tidy — untidy

• fair — unfair • healthy — unhealthy

• correct — incorrect • kind — unkind

• possible — impossible • well — unwell

• polite — impolite • complete — incomplete

• regular — irregular • honest — dishonest

• direct — indirect • fit — unfit

• agree — disagree • use — misuse

• active — inactive • pure — impure

• comfort — discomfort • perfect — imperfect

• lock — unlock • tie — untie

• paid — unpaid • popular — unpopular

• able — unable • do — undo

• dress — undress • interesting — uninteresting

• direct — indirect • moral — immoral

• appear — disappear • responsible — irresponsible

• sure — unsure • natural — unnatural

• balance — imbalance • interested — disinterested

F. Suffixes

Sometimes, we add a letter or a group of letters at the end of a word to change its
meaning. Such letters are called suffixes. Common suffixes are ful, able, ly, less, en,

ness, iou, ous, dom, hood, etc.

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