Synonym des knowing one's stuff

experienced expert skilled accomplished knowledgeable adept master trained professional veteran capable practised proficient qualified seasoned competent consummate skilful adroit crack ace tested tried battle-scarred compleat complete crackerjack educated familiar good great hardened long-serving masterful masterly practiced professed skillful time-served versed virtuoso well trained well versed well-versed wizard accustomed dynamite instructed mean practical pro rounded sport vet broken in on the ball knowing the score the right stuff able talented deft clever dexterous savvy dextrous efficient gifted polished sharp artful brilliant handy smart slick excellent fine ingenious apt workmanlike intelligent nifty tasty stellar canny bravura genius shrewd astute first-rate first-class schooled cunning wicked wise habile elite delicate effective impressive mature au fait up to speed outstanding smooth superb quick suitable sly worldly top-notch brainy formidable supreme magnificent fit old effectual perceptive marvellous big league learned wily cagey knowing crafty marvelous calculating agile quick-witted exceptional foxy streetwise specialist a dab hand at established facile whiz deadly finished hot superlative up to snuff superior nimble out of this world sharp-witted well-rounded demon ready fitted bright full-fledged keen prepared cool been around old hand class nimble-fingered with it sensible up to it street smart leading highly skilled exceptionally skilled immensely skilled highly qualified extraordinarily skilled very skilled highly trained sophisticated splendid multitalented multiskilled refined dazzling effortless proper world-class acute aware serviceable useful worldly-wise discerning sure-handed taught tutored all-round all-around versant certified equal suited sagacious adequate judicious perspicacious hotshot topflight cluey street-smart fly endowed there wised up a hand at neat balanced fully trained fully-fledged weathered exercised exquisite long-time equipped nippy enlightened businesslike senior prompt prodigious precise cute reliable strong resourceful finely judged licensed sage conversant percipient peerless leet subtle insightful pawky having know-how sapient cagy best perfect not born yesterday discriminating media-savvy licenced having been around faultless well informed exceptionally good deep magic clear-sighted on the beam clear-eyed A1 know the ropes whip-smart know one's stuff no slouch tuned in top-drawer methodic methodical wonderful systematic advanced preeminent transcendent decent accurate satisfactory very well productive fluent quintessential organized of long standing past your prime patriarchal full of years specialized habituated handpicked capital deluxe choice employable long-term kosher exemplary ultimate chartered conscious acquainted artisanal specialised drilled phenom rangé powerful hep hip tough certificated dominant organised champion virtuosic fleet top topnotch distinguished super star toughened matured well credentialed pitch-perfect happy phenomenal right on errorless dead-on well sporting on-target trustworthy spot-on thorough sure-fire exact stringent having good hands easy alert extraordinary first class impeccably credentialed eligible artistic remarkable worthy responsible supremely skilled versed in dynamic ultraefficient authorized sufficient well up in worldly wise been there cut out for having a knack for class act shining at highly endowed crisp hardy steady inured proved authorised disciplined accepted feasible know one's business know ins and outs know the score all around know the answers heady argute well versed au courant smashing fab accredited credentialed brill know one's onions hardheaded killer useable working realizable realisable hyperefficient usable practicable clean know backwards and forwards old-time farsighted perfectly-executed well-executed flawless impeccable knows one's stuff from way back wise to ways clued up genned up very able tip-top sharp as a tack top-hole very good no dummy of the old school urbane unprovincial sensitive penetrating intuitive rehearsed studied devious hard-boiled heads-up far-seeing in the know long-headed guileful top-shelf tricky adapted active scheming thoughtful cerebral incisive sentient observant cognizant deceitful having the know-how designing analytical intellectual piercing precocious politic sneaky duplicitous uptown having the goods knowing the ropes green thumb old-timer complex rapier-like analytic intriguing razor-like razor-sharp exacting ratiocinative detailed vigilant slippery Machiavellian having the right stuff has what it takes like a one-man band able to perform deceptive well-informed clued-up tuned-in beguiling like a pistol equal to the task up there up to dodgy slim with-it manipulative carny imaginative vulpine inventive fiendish careful discreet prudent cautious creative considerate diplomatic painstaking rational profound tactful terrific glorious awesome tactical circumspect strategic fast supersmart ultrasmart hyperintelligent wary seemly inspired graceful innovative tremendous polite courteous unrivaled considered sound shifty understanding strict mighty informed unrivalled conniving orderly elaborate fantastic fabulous enterprising expedient scholarly suave erudite commonsensical reasonable admirable opportunistic quick on the trigger advisable quick on the uptake eggheaded whip logical sober poised treating with kid gloves insidious versatile sane judgmatical judgmatic desirable well-organized efficacious very intelligent nimble-witted Einstein whiz kid well-advised well judged just well-judged seasonable judicial common-sense well thought out well advised immaculate pure straight decisive shady prolific hot tamale beautiful express categorical classic voluble redoubtable invincible indomitable adept physically elegant inch-perfect clever with one's hands good with one's hands ambidextrous streamlined original sensational sik exo perfected innovational innovatory well executed notable pioneering teachable originative smooth-running flexible cultivated trailblazing forward receptive puissant amazing Promethean select quick to learn shrewdness rad phat schmick nobody's fool quick-thinking astounding malicious deviceful cultured crazy like a fox sly like a fox Janus-faced noteworthy golden well organized well-endowed sublime quick off the mark heavenly mega banging cracking crucial have the goods ahead of one's peers out of the ordinary have smarts old beyond one's years got it advanced for one's age ingenuous all there vigorous smart as a whip wide awake mercurial quick on the draw curt wired divine bosting gracious gentle of the first water pretty supercalifragilisticexpialidocious well run respectful civil sympathetic sure-footed confident structured cordial decorous thinking outside the box mannerly kind regular conciliatory contriving ordered planned politically correct routine correct workaday meticulous fastidious pragmatic serious purposeful sedulous diligent industrious intent expeditious watchful well-ordered well ordered suss ultra-fine dainty close finical fine-drawn dead on finicking hairsplitting incorrupted finespun minute hairline persnickety winning nice nuanced unerring particular finicky sussed as sharp as a tack

knowing inside out knowing like a book knowing one's way around knowing backwards and forwards knowing by rote knowing the score knowing which end is up knowing one's onions knowing by heart

knowing one's way around knowings knowing someone in the biblical sense knowing the drill knowing the ins and outs knowing the procedure knowing one's onions knowing one's ass from a hole in the ground knowing no alternative knowingnesses knowingness knowing misfortune