- fire-eater, hothead - a belligerent grouch
--1 is a kind of grouch, grump, crank, churl, crosspatch
- daredevil, madcap, hothead, swashbuckler, lunatic, harum-scarum - a reckless impetuous irresponsible person
--2 is a kind of adventurer, venturer
--2 has particulars: tearaway