long-delayed

delayed overdue tardy

behind time behindhand remiss unpunctual

early

on time punctual timely

belated delinquent outstanding tardy unpaid

behind time behindhand due held up hung up jammed mature not punctual owing payable unpunctual unsettled

early on time paid punctual settled

dull gradual low moderate sluggish stagnant stiff tame tedious time-consuming

delayed detained down hindered impeded lingering off prolonged protracted reduced slack

backward behindhand belated conservative dead dilatory draggy inactive long-drawn-out overdue sleepy tardy uneventful unproductive unprogressive unpunctual

active bright exciting interesting lively violent wild

busy cognizant hurried intelligent on cue on time quick rapid ready smart waiting