spark plug Antonyms

habitual absentee clinger bludger bad lot chav freeloader lie-abed goof-off clock watcher black sheep beachcomber goldbrick cyberslacker dragger duck-shover disinterested person diffident person ambitionless person Rip Van Winkle goldbricker gold brick fritterer free rider foot-dragger evader testifier miller hanger-on dawdler dallier crawler cadger bystander bum bloodsucker barnacle avoider attester antiquated daydreamer deadbeat faineant extortioner eschewer drone dreamer do-nothing do-little dodger derelict