adjective
1.
inclined to cautious restraint in the expression of knowledge or opinions
too reserved to offer a spontaneous criticism
Synonyms: constrained, incommunicable, noncommittal, restrained
Related Word: bashful, diffident, modest, shy; ceremonious, conventional, formal
Contrasted words: demonstrative, expansive, unconstrained, unrestrained; boisterous, loud, ostentatious; extroverted, open, outgoing
Antonyms: unreserved
2.
Synonyms: silent 3, close, close-lipped, closemouthed, close-tongued, reticent, taciturn, tight-lipped, tight-mouthed, uncommunicative
Antonyms: effusive
3.
Synonyms: unsociable , aloof, distant, insociable, offish, solitary, standoffish, unapproachable, uncompanionable, withdrawn
Antonyms: affable
4.
Synonyms: antisocial , eremitic, misanthropic, reclusive, solitary, standoffish
5.
Synonyms: qualified 2, limited, modified