tr. & intr.v., -tered, -ter·ing, -ters.

To make or become nervous or upset.

n.

A state of agitation, confusion, or excitement.

[From Middle English flostring, agitation, probably of Scandinavian origin.]

verb

To impair or destroy the composure of: agitate, bother, discompose, disquiet, distract, disturb, flurry, perturb, rock, ruffle, shake (up), toss, unsettle, upset. Informal rattle. See calm/agitation.

noun

A state of discomposure: agitation, dither, flutter, perturbation, tumult, turmoil, upset. Informal lather, stew. See calm/agitation.

n

Definition: perturbation, upset
Antonyms: calm, calmness, comfort, peace

v

Definition: upset, perturb
Antonyms: calm, comfort, settle

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IN BRIEF: Make nervous or confused.

The teacher would try to fluster the students by giving difficult questions on the test.

Dansk (Danish)
v. tr. - gøre forfjamsket, gøre småfuld
v. intr. - blive forfjamsket, komme farende, blive opstemt
n. - forfjamskelse, forskræmthed

Nederlands (Dutch)
zenuwachtigheid, verwarring, overstuur maken/zijn, dronken maken

Français (French)
v. tr. - énerver, rendre (qn) nerveux, se troubler
v. intr. - s'agiter, s'énerver, (être) énervé
n. - agitation

Deutsch (German)
n. - Fassungslosigkeit
v. - aufregen, aus der Fassung bringen

Ελληνική (Greek)
n. - αναστάτωση, (ανα)ταραχή, σύγχυση, εκνευρισμός
v. - προκαλώ σάστισμα ή σύγχυση, (κατα)ταράζω/-ομαι

Italiano (Italian)
agitazione, agitare, agitarsi

Português (Portuguese)
n. - aturdimento (m)
v. - aturdir

Русский (Russian)
суета, будоражить

Español (Spanish)
v. tr. - molestar, aturdir, confundir
v. intr. - aturdir, agitarse, aturdirse
n. - confusión, aturdimiento

Svenska (Swedish)
n. - nervositet
v. - förvirra, hetsa upp, bli het

中文（简体） (Chinese (Simplified))
使慌乱, 使紧张不安, 使激动, 慌乱, 变得紧张不安, 混乱, 狼狈

中文（繁體） (Chinese (Traditional))
v. tr. - 使慌亂, 使緊張不安, 使激動
v. intr. - 慌亂, 變得緊張不安
n. - 慌亂, 混亂, 狼狽

한국어 (Korean)
v. tr. - ~을 혼란 시키다, 취하게 하다
v. intr. - 혼란 해지다
n. - 혼란, 당황

日本語 (Japanese)
v. - 騒がす, 酔わせる, 混乱させる, 混乱する, 慌てる
n. - あわてふためくこと, 混乱

العربيه (Arabic)
‏(الاسم) اهتياج (فعل) يسكر , يربك‏

עברית (Hebrew)
v. tr. - ‮בילבל, הביך‬
v. intr. - ‮בא במבוכה, מבוכה, בלבול, התבלבל‬
n. - ‮מצב בילבול או מבוכה‬

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