Here's what rhymes with infelicitously.
felicitously solicitously Words that almost rhyme with infelicitously
digitally mischievously originally militancy minimally criminally frivolously inimitably spiritedly legitimacy legitimately ridiculously illegitimacy satirically illegitimately medicinally vigilantly virulently chivalrously fictionally difficulty diligently indiscriminately additionally meticulously reciprocally episcopacy misanthropy nutritionally articulately difficultly articulacy traditionally provisionally cryptography equivocally inarticulately inarticulacy unequivocally magnificently conditionally equivalency transitionally unconditionally prepositionally