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  Roget's New Millennium™ Thesaurus - Cite This Source - Share This
Main Entry:  introvert
Part of Speech:  noun
Definition:  loner
Synonyms:  autist, brooder, creep, drip, egoist, egotist, lone wolf, loner*, narcissist, nerd, oddball, self-observer, solitary, weirdo, wet blanket, wimp
Antonyms:  extrovert
Source:  Roget's New Millennium™ Thesaurus, First Edition (v 1.3.1)
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* = informal or slang