Synonyms for Fairly:

adv.

all (adverb)
middling, moderately, passably, reasonably, somewhat.
justly (adverb)
equably, equitably, even-handedly, justly, honestly, properly, honorably, lawfully, rightly, squarely.
rather (adverb)
rather.
respectably (adverb)
morally, creditably, angelically, purely, honestly, worthily, honorably, nobly, irreproachably, right-mindedly, law-abidingly, saintly, unimpeachably, blamelessly, righteously, truly, virtuously, forthrightly, respectably.
squarely (adverb)
squarely.

adv

equally (adverb)
equitably.
justly (adverb)
equitably, equably, honorably, lawfully, justly, rightly, squarely, even-handedly.
moderately (adverb)
within reason, a little.
nobly (adverb)
honorably.
rather (adverb)
a bit.
really (adverb)
verily, genuinely.
respectably (adverb)
morally, creditably, angelically, purely, honestly, worthily, honorably, nobly, irreproachably, right-mindedly, law-abidingly, saintly, unimpeachably, blamelessly, righteously, truly, virtuously, forthrightly, respectably.

n.

properly, accepted, reasonable, unbiased, correctly, decent, natural, just, legitimate, fair-minded, independent, cleanly. partly, mildly, a bit, rather, a little, big, vaguely. fairly (noun)
clean, fair, evenhandedly, passably, middling, somewhat, moderately, reasonably, within reason, without favoring one party.
in truth (noun)
positively, real, true, truthfully, actually, really, verily, genuinely, indeed.

Other synonyms:

partly. correctly, rather, mildly, properly. vaguely. in truth
really, positively, actually, truthfully, genuinely, indeed, verily.

Usage examples for fairly

  1. Of course this car is not so good as the other, but it is fairly clean and comfortable. – The Souls of Black Folk by W. E. B. Du Bois
  2. Are you fairly certain that you will have money then, Penny? – Last Words by Stephen Crane
  3. Only one of them all met the rector's glance fairly and that was Mr. Bonamy. – The New Rector by Stanley J. Weyman