Additional Language Exercises. 35 This exercise looks at adjectives formed with prefixes “un”, “in”, “il”, “ir” and “im”, which give the word an opposite meaning.

35 This exercise looks at adjectives formed with prefixes “un”, “in”, “il”, “ir” and “im”, which give the word an opposite meaning.

There are only general rules for “il”, “ir” and “im”: “il” is used before the letter “l”; “ir” is used before the letter “r”; “im” is used before the letters “p” and “b”.

Translate the adjectives for future reference.

a) inadequate, inaccessible, inaccurate, inadmissible, inadvisable, inapplicable, inappropriate, inarticulate, incautious, incoherent, incompatible, incompetent, inconceivable, incongruous, inconsiderate, inconsistent, incorrigible, incredulous, indispensable, inexcusable, insurmountable, innumerable, ineducable, inept, inessential, inexplicable, inexpressible, infallible, infinite, inhuman, inoperative, insensible, inseparable, insignificant, intolerable, invalid, invincible, involuntary;

b) unabridged, unaccustomed, unadulterated, unambiguous, unarguable, unattainable, unaware, unbiased, uncanny, uncommon, undeniable, unethical, uneventful, unaccompanied, unharmed, unimpressive, unkempt, unmanageable, unpredictable, unprejudiced, unprotected, unscrupulous, unspeakable, unsurpassed, untimely;

c) illegible, illiterate, illegal, illogical;

d) immature, immeasurable, impenetrable, imperfect, implausible, impoverished, impracticable, imprudent;

e) irrational, irrecoverable, irregular, irrelevant, irremediable, irreparable, irreproachable, irresistible, irrevocable.