Having a pleasing face or one showing a sweet disposition(adjective)
WordNet. Princeton University. 2010.
Use "sweet-faced" in a sentence
""I think it's pretty childish, to be honest," said the sweet-faced Ellie, after a group of men stood round her, sniggering about anal probes."
"In the end, the Fox sweet-faced Dallas McMurray, seemingly resurrected, reappears triumphant—even if his eyes are blinded behind glasses marked with X's."
"Theo arrived a few years later and soon he was a sweet-faced kid who asked too many questions, but that just made him more like his mother, and more loved."