| Main Entry: | |
| Part of Speech: | adjective |
| Definition: | impromptu |
| Synonyms: | artless, extemporaneous, extemporary, extempore, instinctive, naive, natural, offhand, spontaneous |
| Antonyms: | prepared, studied |
| Main Entry: | unstudied |
| Part of Speech: | adjective |
| Definition: | unlearned |
| Synonyms: | ignorant, untaught, untrained, unversed |
| Main Entry: | careless |
| Part of Speech: | adjective |
| Definition: | artless |
| Synonyms: | casual, modest, naive, natural, nonchalant, simple, unstudied |
| Notes: | carefree means free of trouble and worry and care while careless means marked by lack of attention or consideration or forethought or thoroughness; not careful |
| Antonyms: | cautious, guarded, kind, mindful, scrupulous |
| Main Entry: | extemporaneous/extemporary |
| Part of Speech: | adjective |
| Definition: | unrehearsed, improvised |
| Synonyms: | ad hoc, ad lib, at first glance, automatic, by ear, casual, expedient, extempore, free, immediate, impromptu, improv, improvisatory, improviso, informal, jamming, made-up, makeshift, off the cuff, off the top of head, offhand, on impulse, on-the-spot, snap, spontaneous, spur-of-the-moment, taking for ride, thought out loud, tossed off, tossed out, unplanned, unpremeditated, unprepared, unstudied, winging it |
| Antonyms: | planned, prepared, read, rehearsed, written |
| Main Entry: | guileless |
| Part of Speech: | adjective |
| Definition: | honest |
| Synonyms: | aboveboard, artless, candid, frank, genuine, ingenuous, innocent, naive, natural, open, simple, simple-minded, sincere, straightforward, truthful, unaffected, undesigning, unsophisticated, unstudied |
| Antonyms: | artful, clever, crafty, cunning, deceitful, dishonest, guileful, tricky |
| Main Entry: | impromptu |
| Part of Speech: | adjective, adverb |
| Definition: | unrehearsed, improvised |
| Synonyms: | ad-lib, dashed off, extemporaneous, extempore, extemporized, fake, faked, improv, improviso, off the cuff, offhand, played by ear, shot from the hip, spontaneous, spur-of-the-moment, thrown off, tossed off, unpremeditated, unprepared, unscripted, unstudied, vamped, whipped up, winged* |
| Notes: | extemporaneous means 'prepared in advance and carried out with few or no notes' while impromptu means 'totally unprepared, performed on the spur of the moment' - but this distinction has been all but lost impromptu conveys unrehearsed remarks or performance with an element of surprise, while extempore only suggests that this is done without notes or props |
| Antonyms: | deliberate, designed, planned, premeditated, rehearsed |
| Main Entry: | improvised |
| Part of Speech: | adjective |
| Definition: | made-up |
| Synonyms: | Band-Aid, ad-lib, autoschediastic, extemporaneous, extempore, extemporized, fly-by-night, hit-or-miss, impromptu, improviso, makeshift, offhand, spontaneous, spur-of-the-moment, unprepared, unrehearsed, unstudied |
| Antonyms: | designed, planned, premediated, rehearsed |
| Main Entry: | ingenuous |
| Part of Speech: | adjective |
| Definition: | honest, trustful |
| Synonyms: | artless, candid, childlike, frank, green*, guileless, innocent, like a babe in the woods, naive, natural, open, outspoken, plain, simple, sincere, square, straightforward, trusting, unaffected, unartful, unartificial, undisguised, unreserved, unschooled, unsophisticated, unstudied, up front |
| Notes: | ingenious is 'clever, brilliant'; ingenuous is 'frank, candid' or 'naïve' ingenuous means 'naïve, easily deceived, unsuspecting; foolish' - and disingenuous means 'calculating, deceptive' |
| Antonyms: | deceitful, dishonest, sly |
| Main Entry: | innocent |
| Part of Speech: | adjective |
| Definition: | harmless, naive |
| Synonyms: | artless, childlike, credulous, frank, fresh, guileless, gullible, hurtless, ignorant, inexperienced, ingenuous, innocuous, innoxious, inobnoxious, inoffensive, offenseless, open, raw, safe, simple, soft, square, unacquainted, unartificial, uncool, unfamiliar, unhurtful, uninjurious, unmalicious, unobjectionable, unoffensive, unschooled, unsophisticated, unstudied, unsuspicious, unworldly, well-intentioned, wellmeant, wide-eyed, youthful |
| Antonyms: | cunning, experienced, impure, knowledgeable |