[1] : The Collaborative International Dictionary of English v.0.48

immediately \imme"diately\, adv.
   1. in an immediate manner; without intervention of any other
      person or thing; proximately; directly; -- opposed to
      mediately; as, immediately contiguous.
      1913 webster

            god's acceptance of it either immediately by
            himself, or mediately by the hands of the bishop.
                                                  --south.
      1913 webster

   2. without interval of time; without delay; promptly;
      instantly; at once.
      1913 webster

            and jesus . . . touched him, saying, i will; be thou
            clean. and immediately his leprosy was cleansed.
                                                  --matt. viii.
                                                  3.
      1913 webster

   3. as soon as. cf. directly, 8, note.

   syn: directly; instantly; quickly; forthwith; straightway;
        presently. see directly.
        1913 webster
see also:
mediately directly 

[2] : WordNet (r) 2.0

immediately
     adv 1: without delay or hesitation; with no time intervening; "he
            answered immediately"; "found an answer straightaway";
            "an official accused of dishonesty should be suspended
            forthwith"; "come here now" syn: instantly, straightaway,
             straight off, directly, now, right away, at
            once, forthwith, in real time, like a shot
     2: near or close by; "he passed immediately behind her"
     3: bearing an immediate relation; "this immediately concerns
        your future"
see also:
instantly straightaway straight off directly now right away 
at once forthwith in real time like a shot 

[3] : Moby Thesaurus II by Grady Ward, 1.0

72 moby thesaurus words for "immediately":
   pdq, amain, anon, apace, at once, away, by forced marches, closely,
   contiguously, cursorily, decisively, directly, expeditiously,
   feverishly, forthwith, furiously, hand over fist, hastily,
   helter-skelter, hotfoot, hurriedly, hurry-scurry, in a jiffy,
   in a second, in a wink, in no time, in passing, instantaneously,
   instanter, instantly, intimately, 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 away,
   right now, right off, shortly, slapdash, smartly, soon, speedily,
   straightaway, straightway, subito, summarily, superficially,
   swiftly, this instant, tout de suite, when, with a rush,
   with all haste, with all speed, with dispatch, with haste,
   without delay, without further delay, without hesitation

Immediately >> I Words
Immediately, definition of term: Immediately
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