crackerjack

1 having or showing exceptional knowledge, experience, or skill in a field of endeavor a crackerjack photographer who gets the news photo that is reprinted around the world Synonyms accomplished, ace, adept, compleat, complete, consummate, crack, proficient, educated, experienced, expert, good, great, master, masterful, masterly, practiced (also practised), professed, skilled, skillful, versed, veteran, virtuosoRelated Words adroit, clever, deft, dexterous (also dextrous), handy, slick, sure-handed; gifted, talented; polished, refined; effective, effectual, efficient, workmanlike; able, capable, competent, employable, fit, fitted, habile, qualified; educated, knowledgeable, schooled, taught, trained, tutored; all-around (also all-round), well-rounded; long-term, old; multiskilled, multitalentedNear Antonyms incapable, incompetent, inept, unable, unfit, unfitted, unqualified, weak; artless, crude, rude; ineffective, ineffectual, inefficient; talentless, ungifted, untalented; ignorant, unschooled, untaught, untrained, untutored; beginning, green, inexperienced, new, raw, unseasoned, untested, untried, would-be; primitive, rough, unpolished; awkward, clumsy, ham-fisted, ham-handed, heavy-handedAntonyms amateur, amateurish, inexperienced, inexpert, jackleg, unprofessional, unseasoned, unskilled, unskillful

2 of the very best kind a crackerjack book on the history of rock music Synonyms A-OK, A1, awesome, bang-up, banner, beautiful, blue-chip, blue-ribbon, boffo, bonny (also bonnie) [chiefly British], boss [slang], brag, brave, bully, bumper, capital, choice, classic, cool [slang], corking, excellent, cracking, dandy, divine, dope [slang], down [slang], dynamite, fab, fabulous, famous, fantabulous [slang], fantastic, fine, first-class, first-rate, first-string, five-star, four-star, frontline, gangbusters (also gangbuster), gilt-edged (or gilt-edge), gone [slang], grand, great, groovy, heavenly, high-class, hot, hype [slang], immense, jim-dandy, keen, lovely, marvelous (or marvellous), mean, neat, nifty, noble, number one (also No. 1), numero uno, out-of-sight [slang], par excellence, peachy, peachy keen, phat [slang], prime, primo [slang], prize, prizewinning, quality, radical [slang], righteous [slang], sensational, slick, splendid, stellar, sterling, superb, superior, superlative, supernal, swell, terrific, tip-top, top, top-flight, top-notch, top-of-the-line, topping [chiefly British], top-shelf, unsurpassed, wizard [chiefly British], wonderfulRelated Words acceptable, adequate, all right, decent, good, OK (or okay), passable, satisfactory, tolerable; better, exceptional, fancy, high-grade, high-test, premium, select, special, superfine; classical, standard, traditionalNear Antonyms bad, inferior, low-grade, substandard, unsatisfactory; mediocre, middling, second-class, second-rateAntonyms atrocious, awful, execrable, lousy, pathetic, poor, rotten, terrible, vile, wretched

1 a person with a high level of knowledge or skill in a field a young prospect who's supposed to be a crackerjack on the baseball diamond Synonyms ace, adept, artist, authority, cognoscente, connoisseur, expert (also crackajack), dab [chiefly British], dab hand [chiefly British], fiend, geek, guru, hand, hotshot, maestro, master, maven (also mavin), meister, past master, proficient, scholar, shark, sharp, virtuoso, whiz, wizardRelated Words pro, professional; consultant, hired gun, specialist; addict, aficionado (also afficionado), buff, devotee, enthusiast, fan; craftsman, journeyman; all-rounder [British], jack-of-all-trades, Renaissance man; mistressNear Antonyms apprentice, beginner, neophyte, novice; dabbler, dilettante; layman, nonprofessionalAntonyms amateur, inexpert, nonexpert

2 something very good of its kind the cheese maker's aged cheddar is a real crackerjack Synonyms beaut, beauty, bee's knees, cat's meow, corker, jim-dandy (also crackajack), daisy, dandy, dilly, doozy (or doozie also doozer), dream, honey, hot stuff, humdinger, hummer, knockout, lollapalooza, lulu [slang], nifty, peach, pip, pippin, ripper, ripsnorter, snorter, sockdolager (or sockdologer), standout, sweetheartRelated Words marvel, phenomenon, prodigy, sensation, wonder; catch, crown jewel, diamond, gem, imperial, jewel, pearl, plum, treasureNear Antonyms bust, disappointment, dud, failure, flop, lemon, letdown, loser, stinker, turkey