(a.) Like a drone; sluggish; lazy.

Micawberish apathetic backward balking balky bone-lazy cadging dallying dawdling delaying deliberate dillydallying do-nothing doless dragging dronish drony easy easygoing ergophobic faineant foot-dragging good-for-nothing grudging indifferent indolent lackadaisical laggard lagging lax lazy leisurely lingering loath loitering lollygagging neglectful negligent nonaggressive parasitic perfunctory procrastinating procrastinative procrastinatory reluctant remiss renitent restive scrounging shiftless shilly-shallying shuffling slack slothful slow slow to sluggish sponging tarrying unenterprising unenthusiastic unhasty unhurried unzealous work-shy