How to Say "obnoxious person" in Spanish
The Spanish word for “obnoxious person” is “borde” — B2 level.
English → SpanishB2
nounB2informal
someone who is socially unpleasant

Examples
El camarero fue un borde, ni siquiera nos miró al servir.
The waiter was a jerk; he didn't even look at us while serving.
No seas borde y pide disculpas.
Don't be rude and apologize.
Used as Adjective and Noun
In this context, 'borde' can be used as a noun ('es un borde') or as an adjective ('es muy borde'). It usually doesn't change form based on gender, even when referring to a woman.
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