Harddihood Hard"di*hood, n. [Hardy + -hood.] Boldness, united with firmness and constancy of mind; bravery; intrepidity; also, audaciousness; impudence. A bound of graceful hardihood. --Wordsworth. It is the society of numbers which gives hardihood to iniquity. --Buckminster. Syn: Intrepidity; courage; pluck; resolution; stoutness; audacity; effrontery; impudence.