| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | shrewd |
| Synonyms: | acute, astute, brainy, cagey, calculating, canny, clever, crafty, cunning, discerning, experienced, farsighted, foxy*, heady, in the know, ingenious, intelligent, judicious, keen, knowing, on the ball, perceptive, sagacious, sensible, sharp, slick*, sly, smart, smooth, streetwise, wise |
| Main Entry: | serpentine |
| Part of Speech: | adjective |
| Definition: | winding; sly |
| Synonyms: | anfractuous, artful, cagey, circuitous, clever, coiling, convoluted, crafty, cunning, curved, curvy, foxy, indirect, mazy, meandering, meandrous, shrewd, sinuous, slick, slinky, snakelike, snaky, subtle, supple, twisting, twisting and turning, wily |
| Main Entry: | shifty |
| Part of Speech: | adjective |
| Definition: | deceitful, untrustworthy |
| Synonyms: | cagey, collusive, conniving, contriving, crafty, crooked, cunning, devious, dishonest, dodging, duplicitous, elusive, equivocating, evasive, fly-by-night, foxy, fraudulent, furtive, insidious, lying, mendacious, prevaricative, prevaricatory, roguish, scheming, shady, shrewd, shuffling, slick, slimy*, slippery, sly, sneaky, treacherous, tricky, underhand, unhonest, unprincipled, untruthful, wily |
| Antonyms: | forthright, frank, honest, trustworthy |
| Main Entry: | shrewd |
| Part of Speech: | adjective |
| Definition: | clever, intelligent |
| Synonyms: | acute, argute, artful, astucious, astute, brainy, cagey, calculating, canny, crafty, cunning, cutting*, deep*, discerning, discriminating, farsighted, foxy*, heady, in the know, ingenious, inside, judicious, keen, knowing, on the inside, on top of, penetrating, perceptive, perspicacious, piercing, probing, profound, prudent, quick-witted, sagacious, savvy*, sensible, shark, sharp, slick*, slippery*, sly, smart, smooth, streetwise, tricky, underhand, up on, wily, wise, wised up |
| Antonyms: | foolish, frivolous, naive, stupid, unthinking |
| Main Entry: | slick |
| Part of Speech: | adjective |
| Definition: | smart, clever |
| Synonyms: | adroit, cagey, canny, deft, dextrous, foxy, glib, knowing, meretricious, plausible, professional, quick, sharp, shrewd, skillful, sly, smooth, smooth-spoken, sophisticated, specious, streetwise, unctuous, urbane, wise |
| Antonyms: | amateurish, clumsy, stupid, unclever, unintelligent |
| Main Entry: | slippery |
| Part of Speech: | adjective |
| Definition: | uncertain, unreliable |
| Synonyms: | cagey, changeable, crafty, cunning, devious, dishonest, duplicitous, elusive, evasive, false, fly-by-night, foxy, inconstant, insecure, mutable, shifty, slick, slithery, smooth, sneaky, treacherous, tricky, two-faced, unpredictable, unsafe, unstable, unsteady, untrustworthy, variable |
| Antonyms: | certain, definite, reliable, stable |
| Main Entry: | sly |
| Part of Speech: | adjective |
| Definition: | clever, devious |
| Synonyms: | arch, artful, astute, bluffing, cagey, calculating, canny, captious, conniving, covert, crafty, crooked, cunning, deceitful, deceptive, delusive, designing, dishonest, dishonorable, dissembling, double-dealing, elusive, foxy, furtive, guileful, illusory, impish, ingenious, insidious, intriguing, mean, mischievous, plotting, roguish, scheming, secret, sharp, shifty, shrewd, slick, smart, smooth, sneaking, stealthy, subtle, traitorous, treacherous, tricky, underhand, unscrupulous, wily |
| Antonyms: | honest, open, simple, straight, straightforward, unclever |
| Main Entry: | street smart |
| Part of Speech: | adjective |
| Definition: | shrewd |
| Synonyms: | artful, astute, cagey, calculating, canny, clever, crafty, cunning, experienced, foxy*, ingenious, intelligent, perceptive, quick-witted, savvy*, seasoned, sharp, slick*, sly, smart, smooth, streetwise, wily, wise |
| Main Entry: | suspicious |
| Part of Speech: | adjective |
| Definition: | distrustful |
| Synonyms: | apprehensive, cagey, careful, cautious, doubtful, green-eyed, in doubt, incredulous, jealous, leery, mistrustful, not born yesterday on the lookout, questioning, quizzical, skeptical, suspect, suspecting, unbelieving, uptight*, wary, watchful, without belief, without faith, wondering |
| Antonyms: | innocent, trustworthy, trusty |