Erratic
mediumih-RAT-ik
adjective
Definition
Not even or regular in pattern or movement; unpredictable
Examples
“His erratic driving alarmed the passengers.”
“The patient's erratic heartbeat concerned the doctors.”
Synonyms
Antonyms
Categories
GRE Tip
Erratic is a medium-difficulty GRE word. On the GRE, you might see it paired with synonyms like "unpredictable" or "inconsistent" in Sentence Equivalence questions. Look for contrast clues (however, despite, although) that signal the opposite meaning. Words like "consistent".
Related GRE Words
sporadic
Occurring at irregular intervals or only in a few places; scattered or isolated
intermittent
Occurring at irregular intervals; not continuous or steady
volatile
Liable to change rapidly and unpredictably, especially for the worse
fickle
Changing frequently, especially regarding one's loyalties or affections
unorthodox
Contrary to what is usual, traditional, or accepted
arbitrary
Based on random choice or personal whim, rather than any reason or system
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