SUFFIXES AND PREFFIXES

il-, im-, ir-, in-

Not/opposite of

examples

Illegal, Illegible, imperfect, impolite, irrelevant, irrational, inconvenient, inactive

un-

Not/opposite of

examples

Unusual, unhappy, uninterested, unpleasant

dis-

Not/opposite of

examples

Dishonest, disloyal, dissimilar, disabled

ultra-, super-, -hyper-

Extreme

examples

Ultra-compact, ultrasound, hyperactive

inter-

Between

examples

International, interdisciplinary

trans-

Across

examples

Transatlantic, transmarine

-able/-ible

Worth, ability

examples

Solvable, accessible, believable, reliable

-al, -ial, -ical

Quality, relation

examples

Professional, structural, national, legal

-ent/-ant

Having a certain quality

examples

Important, dependent, relevant

-ed

Having the quality of

examples

Bored, interested, fascinated

-ic

Quality, relation

examples

Generic, archaic, idealistic, historic

-ing

Referring to an activity

examples

Boring, interesting, fascinating

-ish

Having the character of, about, almost

examples

Newish, reddish

-ful

Having a characteristic

examples

Helpful, colorful, useful

-less

Without, missing

examples

Worthless, careless, useless, hopeless

-ous

Having the quality of, relating to

examples

Adventurous, courageous, advantageous

-ive

Having the quality of

examples

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