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stupid
In a sentence
Bol to hlúpy nápad.
It was a stupid idea.
Ty naozaj nie si hlúpy.
You're really not stupid.
Nebuď hlúpy.
Don't be foolish.
Je mladý a hlúpy.
He is young and foolish.
Examples from Tatoeba (CC BY 2.0 FR).
Source
Slovak National Corpus (SNK) ↗English gloss from the frequency publish path. Example sentences from Tatoeba (CC BY 2.0 FR).
Full attribution on References.