noun
ignoramus
ihg-nuh-RAY-muhs
noun
1
A person who is strikingly uninformed or unwilling to learn; a fool.
"Only an ignoramus would ignore the safety warnings on the label."
"He called himself an ignoramus about wine, then ordered the most expensive bottle."
How to Use Ignoramus
Learner’s notesIn plain EnglishA blunt, slightly comic put-down for someone who really doesn't know what they're talking about.
When to use it
Informal and a bit mocking — avoid in professional writing.
Word Forms
ignoramused past tense, ignoramuses plural, ignorami plural, ignoramuses plural, ignoramuses singular
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Only an _____ would ignore the safety warnings on the label.
Etymology
From the name of the foolish lawyer character Ignoramus in George Ruggle's 1615 play of the same name; ultimately from Latin ignoramus, "we do not know."