blushing
blush-ing
noun
The act of turning red in the face from embarrassment or shyness.
"A sudden blushing overcame her."
adjective
Showing embarrassment or shyness by a reddening of the face.
"She gave a blushing smile."
Thesaurus
Synonyms: blush, bloom, rosiness, flush, rouge, blusher, paint, crimson, redden