Synonym word of vestigial:

abeyant, between the lines, concealed, contained, covert, idle, immature, implied, in abeyance, inactive, inert, inferential, inferred, inherent, inoperative, intrinsic, invisible, involved, lurking, passive, possible, potential, quiescent, rudimentary, secret, sleeping, smoldering, suppressed, suspended, tacit, torpid, underdeveloped, underlying, undeveloped, unexposed, unexpressed, unrealized, unripe, unseen, veiled, vestigial