blunder Definition

blunder
noun

1. A foolish or thoughtless, and usually serious, mistake.

Thesaurus: mistake, lapse, oversight, error, impropriety, indiscretion, faux pas, solecism.

verb blundered, blundering

intr
1. To make a blunder.
intr
2. To act or move about awkwardly and clumsily.

Form: blunder about (especially)
Form: blunder around
Form: blunder in
Form: blunder into
Form: blunder through
3. To mismanage or bungle.

Derivative: blunderer
noun

Derivative: blundering
adj

Derivative: blunderingly
adverb

Etymology: 14c as verb meaning ‘to move blindly or foolishly' and noun meaning ‘confusion or bewilderment': possibly from Norse blunda to shut one's eyes.