Erratic
mediumNegative toneih-RAT-ik
adjective
Definition
Not even or regular in pattern or movement; unpredictable
Memory hook
ERR-atic: full of errors in pattern, like a drunk driver swerving unpredictably.
Word roots
Learning roots unlocks whole word families. Study common GRE root words.
Examples
“His erratic driving alarmed the passengers.”
“The patient's erratic heartbeat concerned the doctors.”
Test yourself
Fill in the blank with the right word:
“His ______ driving alarmed the passengers.”
Show answer
erratic
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
intermittent
Occurring at irregular intervals; not continuous or steady
sporadic
Occurring at irregular intervals or only in a few places; scattered or isolated
volatile
Liable to change rapidly and unpredictably, especially for the worse
arbitrary
Based on random choice or personal whim, rather than any reason or system
fickle
Changing frequently, especially regarding one's loyalties or affections
mercurial
Subject to sudden changes in mood or behavior; volatile and unpredictable
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