| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | silent, unsociable; constrained |
| Synonyms: | aloof, backward, bashful, cautious, ceremonious, close, close-mouthed, cold*, collected, composed, conventional, cool, demure, diffident, distant, eremitic, formal, frigid, gentle, icy*, mild, misanthropic, modest, noncommittal, offish, peaceful, placid, prim, quiet, reclusive, restrained, reticent, retiring, secretive, sedate, self-contained, serene, shy, soft-spoken, solitary, standoffish, taciturn, unapproachable, uncommunicative, uncompanionable, undemonstrative, unresponsive, withdrawn |
| Antonyms: | extroverted, friendly, outgoing, sociable |
| Main Entry: | sneaky |
| Part of Speech: | adjective |
| Definition: | underhanded, dishonest |
| Synonyms: | base, contemptible, cowardly, deceitful, devious, disingenuous, double-dealing, duplicitous, furtive, guileful, indirect, low, malicious, mean, nasty, recreant, secretive, shifty, slippery, sly, sneaking, snide, stealthy, surreptitious, tricky, underhand, unreliable, unscrupulous, untrustworthy, yellow* |
| Antonyms: | aboveboard, candid, forthright, frank, honest |
| Main Entry: | thieving/thievish |
| Part of Speech: | adjective |
| Definition: | criminal |
| Synonyms: | crooked, cunning, dishonest, fraudulent, furtive, kleptomaniacal, larcenous, light-fingered, pilfering, piratic, plunderous, predatory, rapacious, secretive, sly, spoliative, stealthy, sticky-fingered |
| Antonyms: | benevolent, philanthropic |
| Main Entry: | tight-lipped |
| Part of Speech: | adjective |
| Definition: | silent |
| Synonyms: | buttoned up, clammed up, closemouthed, dumb, hushed, mum, mute, muted, not talkative, quiet, reserved, restrained, reticent, secretive, taciturn, tongue-tied, zipped |
| Main Entry: | uncommunicative |
| Part of Speech: | adjective |
| Definition: | shy, silent |
| Synonyms: | aloof, buttoned up, clammed up, close, close-mouthed, curt, distant, dried up, evasive, guarded, hush-hush, offish, on the QT, quiet, reserved, reticent, retiring, secretive, short, standoffish, taciturn, tight-lipped, unapproachable, unresponsive, unsociable |
| Antonyms: | communicative, confident, extroverted, responsive |
| Main Entry: | underhand |
| Part of Speech: | adjective |
| Definition: | deceitful |
| Synonyms: | clandestine, concealed, crafty, crooked, cunning, deceptive, devious, dirty-dealing, dishonest, dishonorable, double-crossing, duplicitous, fraudulent, furtive, guileful, hush-hush, indirect, insidious, oblique, on the QT, on the quiet, secret, secretive, shady, shifty, slippery*, sly*, sneaking, sneaky, stealthy, sub-rosa, surreptitious, treacherous, tricky, two-faced, two-timing, under wraps, undercover, underhanded, unethical, unfair, unjust, unscrupulous, wily |
| Antonyms: | aboveboard, forthright, frank, honest |
| Main Entry: | unsociable |
| Part of Speech: | adjective |
| Definition: | unfriendly |
| Synonyms: | aloof, antagonistic, brooding, cold, cool, distant, easy-going, hostile, inaccessible, inhospitable, introverted, laid-back*, nongregarious, recessive, reclusive, reserved, retiring, secretive, sensitive, shy, standoffish, stuck-up, timid, unapproachable, unbending, uncommunicative, uncongenial, unforthcoming, unneighborly, unsocial, uppity, withdrawn |
| Notes: | to be antisocial is to be hostile to or disruptive of the established social order, marked by or engaging in behavior that violates accepted mores; while being unsociable means one is not disposed to seek the company of others or is reserved |
| Antonyms: | approachable, friendly, nice, sociable, social |
| Main Entry: | thieving |
| Part of Speech: | adjective |
| Definition: | criminal |
| Synonyms: | crooked, cunning, dishonest, fraudulent, furtive, kleptomaniacal, larcenous, light-fingered, pilfering, piratic, plunderous, predatory, rapacious, secretive, sly, spoliative, stealthy, sticky-fingered, thievish |
| Antonyms: | benevolent, philanthropic |
| Main Entry: | underhanded |
| Part of Speech: | adjective |
| Definition: | secret |
| Synonyms: | cheating, clandestine, corrupt, deceitful, devious, dishonest, guileful, scheming, secretive, shifty, sly, sneaky |
| Antonyms: | open, public |