TAKEN ABACK

Albanian

zë gafil (take aback), i befasuar (flabbergasted). (various references)

Arabic 

‏ذهل (amaze, astonish, astound, bemuse, bewilder, bowl over, confound, distract, flabbergast, flummox, maze, shake, shock, stagger, stun, stupefy, surprise, take a fancy to, wonder). (various references)

Bulgarian 

стреснат (frightened, frightening), изненадан (open-eyed). (various references)

Czech

být vyveden z rovnováhy (be taken aback), být překvapen (be taken aback). (various references)

Dutch

verstomd (abashed, aghast, upset), verslagen (abashed, aghast, upset), verbluft (abashed, aghast, perplexed, upset), uit het veld geslagen (perplexed), perplex (perplexed), onthutst (abashed, aghast, upset), ontdaan (abashed, aghast, upset), beteuterd (dazed, perplexed, upset). (various references)

Esperanto

perpleksa (perplexed), konsternita (upset). (various references)

Faeroese

hamskiftur (perplexed). (various references)

Finnish

ymmällä (perplexed). (various references)

French

stupéfait, interloqué. (various references)

German

verdutzt (disconcerts), bestürtzt (abashed, aghast, dazed, perplexed, upset), befremdet (disconcerted). (various references)

Greek 

ξαφνιασμένος (taken by surprise). (various references)

Hebrew 

מופתע (amazed, astonished, startled, surprised), מורתע (deterred, startled). (various references)

Hungarian

megdöbbentett. (various references)

Indonesian

termangu-mangu (dazed, speechless), termangu (dazed, speechless), tercengang (agape, amazed, astonished, dumb founded, flabbergasted, stupefied, wondering). (various references)

Japanese Kanji 

呆気 (dumbfounded), はち切れる (bluff, clearly, Dear me!, distinctly, Good gracious!, plainly, to be filled to bursting, to burst). (various references)

Japanese Katakana 

あっけ (dumbfounded), はっと . (various references)

Pig Latin

akentay abackay.(various references)

Romanian

rãmâne buimac (be taken aback), fi surprins (be surprised, be taken aback). (various references)

Russian 

смущенный (abashed, ablush, confused, disconcerted, embarrassed), захваченный врасплох. (various references)

Serbo-Croatian

iznenađen (stunned). (various references)

Spanish

desconcertado (abashed, astounds, bewildered, confused, disconcerted, embarrassed, hot under the collar, perplexed, stumps), azorado. (various references)

Swedish

flat (flat). (various references)

Turkish

şaşkın (addle-brained, addled, addle-headed, addle-pated, all abroad, at an end, bemused, bepuzzle, bewildered, confused, consternated, dizzy, dumbfounded, gaping, happy, open-eyed, pixilated, puzzled, puzzle-headed, sheepish, slaphappy, thunderstruck, twisted, wide-eyed, wondering), şaşırmış (all at sea, all out, amazed, at a loss, baffled, bewildered, blank, confounded, confused, disoriented, distracted, lost, perplexed, punch-drunk, puzzled, surprised, twisted, wondering), afallamış (astonished, consternated, floored, open-eyed). (various references)

Ukrainian

бути захопленим зненацька (be taken aback), бути поставленим в безвихідь (be taken aback). (various references)

Welsh

wedi synnu. (various references)