Nonplussed

Adjective

 * 1) Bewildered; unsure how to respond.
 * 2) * 1724,, Roxana: The Fortunate Mistress:
 * Note, the honest Quaker was nonplussed, and greatly surprised at that question.
 * 1) * Episode 16
 * For the nonce he was rather nonplussed but inasmuch as the duty plainly devolved upon him to take some measures on the subject he pondered suitable ways and means during which Stephen repeatedly yawned.
 * 1) 🇺🇸 Unfazed, unaffected, or unimpressed.

Synonyms

 * perplexed, vexed

Verb
nonplussed



Thesaurus
addled, at a loss, at a nonplus, at a stand, at a standstill, at an impasse, baffled, bamboozled, beat, bewildered, buffaloed, confounded, dazed, floored, fuddled, in a dilemma, in suspense, licked, muddled, mystified, on tenterhooks, perplexed, puzzled, stuck, stumped, thrown

Etymology
From non plus:.

Adjective

 * Finnish: ymmällään, hämmentynyt
 * Russian: растерянный


 * Swedish: ställd