How to Say "lout" in Spanish
The Spanish word for “lout” is “grosero” — B1 level.
English → SpanishB1
NounB1neutral/informal
a boorish or uncivilized person

Examples
El grosero me empujó sin pedir disculpas.
The rude person pushed me without apologizing.
No quiero invitar a esos groseros a mi fiesta.
I don't want to invite those rude people (louts) to my party.
Gender Change
To refer to a rude woman, change the ending and the article: 'el grosero' (the rude man) becomes 'la grosera' (the rude woman).
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