1. (adv.) Without the least delay or interval; at once; immediately.

2. (adv.) With urgency or importunity; earnestly; pressingly.

PDQ amain apace at once away by forced marches cursorily decisively directly expeditiously feverishly forthwith furiously hand over fist hastily helter-skelter hotfoot hurriedly hurry-scurry immediately in no time in passing instantaneously instanter just now just then momentaneously momentarily momently now on the dot on the instant on the nail on the run on the spot pell-mell pretty damned quick promptly pronto quickly right right away right off slapdash smartly speedily straightaway straightway subito summarily superficially swiftly with a rush with all haste with all speed with dispatch with haste without delay without further delay