Synonyms for Completely:

adv.

absolutely (adverb)
supremely, unequivocally, certainly, definitely, categorically, positively, absolutely, indubitably, conclusively, perfectly, unqualifiedly, unrestrictedly, surely, unconditionally, Consummately, utterly.
completely (adverb)
inside-out, finally, collectively, exhaustively, thoroughly, universally, comprehensively, totally, quite, radically, fully.
entirely (adverb)
sweepingly, extensively, painstakingly, to the end, to the limit, fully, on all counts, competently, exhaustively, comprehensively, thoroughly, perfectly, ultimately, utterly, quite, conclusively, wholly, in full, globally, In Toto, Undividedly, to the nth degree, effectively, solidly, all the way, in entirety, unanimously, en masse, unconditionally, from beginning to end, without omission, altogether, totally, absolutely, finally, from A to Z.
lastly (adverb)
lastly, terminally.
perfectly (adverb)
flawlessly, ultimately, faultlessly, impeccably, letter-perfectly.
purely (adverb)
purely.
really (adverb)
literally.
sufficiently (adverb)
well.
unitedly (adverb)
solidly, coincidentally, Indivisibly, Atomically, cohesively, entirely, Congruously, unitedly, purely, fundamentally, simply, Elementally, singly, coherently, congruently, homogeneously, holistically, integrally.

adv

absolutely (adverb)
supremely, unequivocally, certainly, definitely, categorically, positively, absolutely, indubitably, conclusively, perfectly, unqualifiedly, unrestrictedly, surely, unconditionally, Consummately, utterly.
beyond any doubt (adverb)
finally.
completely (adverb)
integrally, entirely, collectively, exhaustively, totally, thoroughly, comprehensively, fully, universally, finally.
entirely (adverb)
quite, conclusively, totally, painstakingly, comprehensively, rain or shine, entirely, fully, lock, and sinker, sweepingly, in the mass, effectively, exhaustively, to the nth degree, from beginning to end, all the way, globally, line, In Toto, minutely, through and through, in full, maturely, to completion, in full measure, holistically, to the limit, in one lump, determinedly, extensively, competently, unanimously, from head to foot, down to the ground, in entirety, wholly, en masse, bodily, to a frazzle, and barrel, through thick and thin, stock, to the utmost, radically, without omission, downright, to the end, to the full, from A to Z, Undividedly, hook, inside-out, on all counts, root and branch.
lastly (adverb)
finally, terminally, lastly.
perfectly (adverb)
perfectly, impeccably, flawlessly, faultlessly, letter-perfectly, Consummately, ultimately.
purely (adverb)
In Toto.
solely (adverb)
Undividedly.
strongly (adverb)
solidly.
unitedly (adverb)
solidly, coincidentally, Indivisibly, Atomically, cohesively, entirely, Congruously, unitedly, purely, fundamentally, simply, Elementally, singly, coherently, congruently, homogeneously, holistically, integrally.

n.

literally, especially, absolute, complete, pure, particular. completely (noun)
totally, entirely, all, altogether, wholly, whole.

Other synonyms:

intensively, especially, absolute, complete, really, pure. particular. dead, flat. clean. line. as a whole
bodily.
efficiently
effectively.
permeating
through and through.
thoroughly
downright.
whole
hook, whole.

Usage examples for completely

  1. The mention of Honor seemed to silence the doctor completely – Banked Fires by E. W. (Ethel Winifred) Savi
  2. That the stadholder was completely in their power was certain. – Project Gutenberg History of The Netherlands, 1555-1623, Complete by John Lothrop Motley