impropio

improper

adjective eem-PROH-pyoh Rare

Origin: From Latin improprius.

Also means

inappropriate

Usage Note

Impropio can describe behavior that violates social norms (conducta impropia) or language that is technically incorrect (uso impropio de una palabra). The antonym is propio. Do not confuse with the English 'improper fraction', which is fracción impropia — a calque but a true match here.

Examples

"Su conducta fue completamente impropia."

Natural Translation

His behavior was completely improper.

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