forthwith

• POS: Adverb
• HYPHEN: forth=with

CIDE DICTIONARY

forthwith, adv. 

•  Immediately; without delay; directly.  [1913 Webster]

  "Immediately there fell from his eyes as it had been scales; and he received sight forthwith."  [1913 Webster]
•  As soon as the thing required may be done by reasonable exertion confined to that object.  Bouvier.  [1913 Webster]

OXFORD DICTIONARY

forthwith, adv. immediately; without delay.

Etymology

earlier forthwithal (as FORTH, WITH, ALL)

THESAURUS

forthwith

PDQ, abruptly, all at once, all together, apace, at a blow, at a stroke, at once, at one blow, at one jump, at one stroke, at one swoop, at one time, away, decisively, directly, expeditiously, immediately, in a hurry, in no time, instanter, instantly, now, on the instant, on the spot, per saltum, pretty damned quick, promptly, pronto, quickly, right away, right now, right off, simultaneously, smartly, speedily, straightaway, straightway, subito, sudden, suddenly, summarily, swiftly, then and there, this minute, this very minute, uno saltu, with all speed, without delay, without further delay

ROGET THESAURUS

forthwith

Earliness

N earliness, morning, punctuality, promptitude, haste, suddenness, prematurity, precocity, precipitation, anticipation, a stitch in time, early, prime, forward, prompt, summary, premature, precipitate, precocious, prevenient, anticipatory, rath, sudden, unexpected, near, near at hand, immediate, early, soon, anon, betimes, rath, eft, eftsoons, ere long, before long, shortly, beforehand, prematurely, precipitately, too soon, before its time, before one's time, in anticipation, unexpectedly, suddenly, before one can say 'Jack Robinson', at short notice, extempore, on the spur of the moment, on the spur of the occasion, at once, on the spot, on the instant, at sight, offhand, out of hand, a' vue d'oeil, straight, straightway, straightforth, forthwith, incontinently, summarily, immediately, briefly, shortly, quickly, speedily, apace, before the ink is dry, almost immediately, presently at the first opportunity, in no long time, by and by, in a while, directly, no sooner said than done, immediately, if not sooner, tout vient a temps pour qui sait attendre.