verb (used with object)
- to put into a state of agitated confusion: His constant criticism flustered me.
- to excite and confuse with drink.
verb (used without object)
- to become agitatedly confused.
- nervous excitement or confusion.
- to make or become confused, nervous, or upset
- a state of confusion or agitation
early 15c. (implied in flostyrynge), from a Scandinavian source (cf. Icelandic flaustr “bustle,” flaustra “to bustle”). Originally “to excite,” especially with drink; sense of “to flurry, confuse” is from 1724. Related: Flustered; flustering. As a noun, 1710, from the verb.