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| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | smooth, polished |
| Synonyms: | glossy, greasy, icy, lubricious, oily, oleaginous, shiny, sleek, sleeky, slippery, slithery, soapy |
| Antonyms: | coarse, rough, unpolished |
| Main Entry: | treacherous |
| Part of Speech: | adjective |
| Definition: | dishonest, disloyal |
| Synonyms: | betraying, catchy, deceitful, deceptive, double-crossing, double-dealing, duplicitous, faithless, false, false-hearted, fly-by-night, insidious, misleading, perfidious, recreant, shifty, slick*, slippery*, snake in the grass, traitorous, treasonable, tricky, two-faced, two-timing, undependable, unfaithful, unloyal, unreliable, untrue, untrustworthy |
| Antonyms: | forthright, honest, loyal, true |
* = informal/non-formal usage
| Main Entry: | treacherous |
| Part of Speech: | adjective |
| Definition: | dangerous |
| Synonyms: | alarming, chancy, deceptive, difficult, dissembled, faulty, hairy*, hazardous, icy*, insecure, jeopardous, menacing, misleading, ominous, perilous, precarious, risky, shaky, slippery, ticklish, tricky, undependable, unhealthy, unreliable, unsafe, unsound, unstable, wicked |
| Antonyms: | harmless, untreacherous |
* = informal/non-formal usage
| Main Entry: | tricky |
| Part of Speech: | adjective |
| Definition: | deceptive, sly |
| Synonyms: | artful, astute, cagey, catchy, clever, crafty, cunning, deceitful, deep, delusive, delusory, devious, dishonest, foxy, greasy, guileful, insidious, intelligent, keen, misleading, scheming, shady, sharp, shifty, shrewd, slick*, slippery*, smooth, streetwise, subtle, treacherous, wily, witted, wry |
| Antonyms: | aboveboard, frank, honest |
* = informal/non-formal usage
| 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 |
* = informal/non-formal usage
| Main Entry: | unethical |
| Part of Speech: | adjective |
| Definition: | dishonest, immoral |
| Synonyms: | cheating, corrupt, crooked, dirty*, dirty-dealing, dishonorable, disreputable, double-crossing, fake, fishy, flimflam, fly-by-night, illegal, improper, mercenary, scam*, shady*, sharp*, slick*, slippery*, sneaky*, two-faced, two-timing, underhand, unfair, unprincipled, unprofessional, unscrupulous, wrong |
| Antonyms: | ethical, good, honest, moral, right, upright |
* = informal/non-formal usage
| Main Entry: | unsafe |
| Part of Speech: | adjective |
| Definition: | dangerous |
| Synonyms: | alarming, chancy, erratic, explosive, fearsome, hanging by a thread, hazardous, insecure, on a limb, on thin ice, perilous, precarious, risky, shaky, slippery, threatening, ticklish, touch and go, touchy*, treacherous, uncertain, undependable, unreliable, unsound, unstable, untrustworthy |
| Antonyms: | harmless, protected, safe, secure |
* = informal/non-formal usage
| Main Entry: | unscrupulous |
| Part of Speech: | adjective |
| Definition: | immoral |
| Synonyms: | arrant, base, casuistic, conscienceless, corrupt, crafty, crooked, deceitful, degraded, degrading, disgraceful, dishonest, dishonorable, exploitative, illegal, improper, low-down, mercenary, perfidious, petty, questionable, recreant, ruthless, scandalous, scheming, self-seeking, selfish, shady, shameless, shifty, sinister, slippery, sly, two-faced, unconscientious, unconscionable, underhand, underhanded, unethical, unfair, unprincipled, unworthy, venal, wicked, wrongful |
| Antonyms: | ethical, good, moral, principled, scrupulous |
| Main Entry: | unstable/unsteady |
| Part of Speech: | adjective |
| Definition: | doubtful, weak |
| Synonyms: | ambiguous, borderline, capricious, changeable, dizzy, dubious, erratic, fickle, fitful, fluctuating, giddy, inconsistent, inconstant, insecure, irrational, lubricious, mercurial, mobile, movable, moving, mutable, not fixed, precarious, rickety, risky, rocky, sensitive, shaky, shifty, slippery, suspect, teetering, temperamental, ticklish, tricky, uncertain, unpredictable, unsettled, unsteady, untrustworthy, vacillating, variable, volatile, wavering, weaving, wiggly, wobbly |
| Antonyms: | stable, steady, strong |
Roget's 21st Century Thesaurus, Third Edition
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Copyright © 2013 by the Philip Lief Group.
Cite This Source
Copyright © 2013 Dictionary.com, LLC. All rights reserved.
