THESAURUS
promptness
OK, abruptness, acceptance, accord, acquiescence, acuity, acuteness, affirmation, affirmative, affirmative voice, agility, agreeability, agreeableness, agreement, air speed, alacrity, alertness, amenability, animation, anxiety, anxiousness, appetite, approbation, approval, ardor, assent, attention, attentiveness, avidity, avidness, aye, blessing, breathless impatience, brightness, briskness, celerity, cheerful consent, cheerful readiness, compliance, connivance, consent, cooperativeness, decisiveness, dispatch, docility, eagerness, elan, endorsement, enthusiasm, expedition, expeditiousness, fastness, favorable disposition, favorableness, feverishness, flight, flit, flurry, forwardness, furiousness, gameness, goodwill, ground speed, gust, gusto, haste, hastiness, hurriedness, hurry, immediacy, immediateness, impatience, impetuosity, impetuousness, impulsiveness, instantaneousness, keen desire, keenness, knots, life, lightning speed, liveliness, miles per hour, nimbleness, okay, permission, pliability, pliancy, precipitance, precipitancy, precipitation, precipitousness, promptitude, punctuality, punctualness, quickness, rapidity, rashness, ratification, readiness, receptive mood, receptiveness, receptivity, responsiveness, right mood, round pace, rpm, rush, sanction, sharpness, sleeplessness, smartness, snappiness, speed, speediness, spirit, spryness, submission, suddenness, summariness, swift rate, swiftness, tractability, ungrudgingness, unloathness, unreluctance, velocity, verve, vitality, vivacity, wakefulness, willing ear, willing heart, willingness, zeal, zealousness, zest, zestfulness
ROGET THESAURUS
promptness
Punctuality
N
punctuality,
promptness, immediateness, timely, seasonable, in time, punctual, prompt, on time, punctually, at the deadline, precisely, exactly, right on time, to the minute, in time, in good time, in military time, in pudding time, in due time, time enough, with no time to spare, by a hair's breadth, touch and go, not a minute too soon, in the nick of time, just under the wire, get on board before the train leaves the station.