promptly

quickly

At high speed

• rapidlyAt high velocity
• speedilyIn a rapid manner
• fastSpeedy, or skip eating

swiftly · briskly · hastily · expeditiously · posthaste · lickety-split · pronto · snappily · apace · fleet

instantly

Without any pause

• straightawayWithout pause or hesitation
• forthwithWithout delay
• immediatelyWithout any pause

right away · at once · without delay · directly · now · instantaneous · instant · moment · spontaneous · sudden

on-time

At the scheduled moment

• timelyOccurring when appropriate
• schedulePlan of timed events
• deadlineTime limit for completion

clockwork · reliable · discipline · appointment · sharp · precisely · exactly · dot · punctuality · dependable

urgently

With pressing immediacy

• rushQuick sudden movement
• expediteSpeed up a process
• pressingRequiring immediate attention

critical · imperative · emergency · crisis · desperate · dire · compelling · insistent · demanding · time-sensitive

• hurry uphurry, hurry up, rush, hustle, move it
• speed adverbsquickly, fast, rapidly, swiftly, speedily
• Right Awaynow, instantly, immediately, forthwith, straightaway
• time wordsminute, hour, day, now, soon
• suddennesssudden, suddenly, abrupt, abruptly, instant
• commandsgo, stop, wait, come, run