If you describe someone as impudent, you mean they are rude or disrespectful, or do something they have no right to do.
Some of them were impudent and insulting.
One sister had the impudence to wear the other's clothes.
Translation English Cobuild Collins Dictionary
audacious, bold, bold-faced, brazen, bumptious, cheeky (informal) cocky (informal) forward, fresh (informal) immodest, impertinent, insolent, lippy (U.S. & Canad. slang) pert, presumptuous, rude, sassy (U.S. informal) saucy (informal) shameless
courteous, modest, polite, respectful, retiring, self-effacing, timid, well-behaved
English Collins Dictionary - English synonyms & Thesaurus
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