fluster
UK: ˈflʌstə | US: ˈflʌstər
vt. to make someone agitated or confused
n. a state of nervous confusion or agitation
The word "fluster" likely originated in the late 16th century, possibly from Scandinavian sources (e.g., Old Norse flaustr "bustle, confusion"). The root flust- conveys a sense of hurried movement or agitation, while the suffix -er forms verbs or nouns indicating a state or action. Over time, "fluster" evolved to specifically describe emotional or mental agitation rather than physical haste.
The sudden question flustered the speaker, causing her to pause.
He tried to hide his fluster when he realized his mistake.
The noisy crowd flustered the performer on stage.
She was in a fluster after spilling coffee on her dress.
Don’t let their criticism fluster you—stay calm.