Flustered means hot, confused and rattled under sudden pressure. Get flustered, she looked flustered, don't fluster me.
It describes a temporary state caused by too much happening at once — being late, being watched, being asked three things together — and it is milder and more sympathetic than panicked. The visible signs are in the word: flustered people go red and lose their thread. The verb is fluster, usually transitive: it flustered her. Note unflustered, which is a real compliment, and unflappable, which is the stronger version of the same praise.
1adjectiveflusteredConfused and agitated by sudden pressure.
“She got flustered and read the wrong page.”
synonyms: agitated, rattled, flurried
flustered is a state of agitation.
Also accepted in games: agitated
Middle English
*flostren
English
fluster
English, today
flustered
Built from
fluster The verb is probably from Middle English flostren (implied in flostring, flostrynge (“agitation; blustering”)) from a Scandinavian (gmq -) language; compare Icelandic flaustra (“to bustle”), flaustr (“a bustle; a hurry”). Compare Old English flustrian (“to weave, plait, braid”). The noun is derived from the verb.
Etymology from Wiktionary, CC BY-SA