Impair
mediumNegative toneim-PAIR
verb
Definition
to weaken or damage, especially in function
Memory hook
IMPAIR sounds like 'IM (not) + PAIR': break a PAIR so it no longer works as a whole; the function is weakened.
Word roots
Learning roots unlocks whole word families. Study common GRE root words.
Examples
“Lack of sleep can seriously impair your judgment.”
“Years of pollution had impaired the river's ability to support fish.”
Test yourself
Fill in the blank with the right word:
“Lack of sleep can seriously ______ your judgment.”
Show answer
impair
Categories
GRE Tip
Impair is a medium-difficulty GRE word. On the GRE, you might see it paired with synonyms like "weaken" or "damage" in Sentence Equivalence questions. Look for contrast clues (however, despite, although) that signal the opposite meaning. Words like "enhance".
Related GRE Words
sap
(verb) To gradually weaken or destroy; to drain of energy
attenuate
To reduce the force, effect, or value of; to weaken
undermine
To weaken or damage something, especially gradually or insidiously
abate
To reduce in amount, degree, or intensity
dwindle
To diminish gradually in size, amount, or strength
ebb
To gradually decrease or decline; the movement of tide out to sea
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