3
unpardonably
2
inexcusably
2
unforgivably
2
unjustifiably(adverb, basis, justifiably)
1
groundlessly(adverb, justifiably)
0
badly
0
bogusly
0
counterfeitly
0
deceitfully
0
deceivingly
0
deceptively
0
erroneously
0
falsely
0
faultily
0
flimsily
0
impolitely
0
improperly
0
inaccurately
0
incorrectly
0
indefensibly
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APASmart Define. (2013). excusably thesaurus. Retrieved September 21, 2026, from https://smartdefine.org/excusably/thesaurus/antonyms
ChicagoSmart Define. 2013. "excusably thesaurus" https://smartdefine.org/excusably/thesaurus/antonyms (accessed September 21, 2026).
HarvardSmart Define 2013, excusably thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/excusably/thesaurus/antonyms>.
MLASmart Define. "excusably thesaurus" 28 June 2013. Web. 21 September 2026. <https://smartdefine.org/excusably/thesaurus/antonyms>