He obstinately refused to hear my reasons.
I can guarantee you that. Indeed you can use guarantee in a sentence.
The sentence: He refused. Extended: He refused to do it. Or: He refused to do it even though he knew how much it meant to me.
He refused to consummate his arranged marriage on the grounds that he was a homosexual.
Jasmine, refused to hearken the teachers words.
He obstinately refused to go under the dentist's drill.
The rebel refused to follow orders from the government.
Yes, that is a complete sentence because it has a subject (he) and a verb (refused), although it does need a period after 'refused'. That's all you need to form a sentence.
Sexually no
I Refused to open the door.
Please use the nonstick pan.
Thebeleaguer crew was outgunned, out-manned, and outranked, but they valiantly refused to surrender.