Synonyms for Exceptionally:

adv.

exceptionally (adverb)
excellently, notably, wonderfully, outstandingly, Superiorly, phenomenally, fantastically, strikingly.
extremely (adverb)
very, extremely.
highly (adverb)
highly.
nonconformingly (adverb)
abnormally, erratically, deviantly, atypically, Eccentrically, peculiarly, nonconformingly, anomalously, curiously, funnily, uncommonly, bizarrely, strangely, inconsistently, uncustomarily, freakishly, queerly, uniquely, crazily, improperly, untypically, extraordinarily, unconventionally, idiosyncratically, aberrantly, divergently, quirkily, outlandishly, unusually, singularly, novelly, differently, unordinarily, irregularly, oddly, unfamiliarly, incongruously, incompatibly.
qualifiedly (adverb)
conditionally, notwithstanding, reservedly, provisionally, Qualifiedly.
unusually (adverb)
particularly, especially, abnormally.

adv

exceptionally (adverb)
extraordinarily, excellently, strikingly, peculiarly, fantastically, phenomenally, wonderfully, notably, novelly, Superiorly, unusually, outstandingly.
extremely (adverb)
enormously, supremely, incredibly, strikingly, overwhelmingly, distinctly.
infrequently (adverb)
uncommonly.
nonconformingly (adverb)
abnormally, erratically, deviantly, atypically, Eccentrically, peculiarly, nonconformingly, anomalously, curiously, funnily, uncommonly, bizarrely, strangely, inconsistently, uncustomarily, freakishly, queerly, uniquely, crazily, improperly, untypically, extraordinarily, unconventionally, idiosyncratically, aberrantly, divergently, quirkily, outlandishly, unusually, singularly, novelly, differently, unordinarily, irregularly, oddly, unfamiliarly, incongruously, incompatibly.
qualifiedly (adverb)
conditionally, notwithstanding, reservedly, provisionally, Qualifiedly.

n.

notable, unique, unusual, remarkable, special, out of the ordinary, offbeat, surprising, exotic, odd. usual, remarkably. awfully, eminently, big, exceedingly, greatly, very, extremely, mighty, awful, extra, most, highly, dreadfully. exceptionally (noun)
notably, unusually, irregularly, uncommonly, outstandingly, extremely, wonderfully, abnormally, extraordinarily, especially, remarkably.
unusually (noun)
particularly, especially.

Other synonyms:

especially, eminently, dreadfully. exceedingly, extremely, highly, greatly, remarkably. awfully. extra. mighty. Other relevant words:
awful, remarkably, enormously, eminently, exceedingly, very, notable, extremely, highly, incredibly, most, dreadfully, particularly, especially, greatly, mighty, extra, awfully.

Usage examples for exceptionally

  1. Be this as it may, the lace known as Point d'Argentella is exceptionally fine even amongst other fine laces, and is noted most specially for the fine " jours" which form an essential part of the pattern, every effort apparently being made to give extra scope for their employment. – Chats on Old Lace and Needlework by Emily Leigh Lowes
  2. When she came to know his type better she realized that he had done exceptionally well by her. – The Bells of San Juan by Jackson Gregory