bitchly adjective 1adverb 1forms 4 adjective1 •Of, like, or befitting a bitch (all senses); bitchlike"What a dirty black-hearted bitchly bastard you are," he said bitterly, and sat down in one of the cane-bottomed chairs. — 1940 adverb1 •In a manner befitting a bitchI wanted to get up and lift her onto the recliner. I wanted to help her get comfortable, perhaps cover her legs with a light blanket. But she was determined, bitchly so, to do most everything herself. — 1994 formsbitchlier · more bitchly · bitchliest · most bitchly