Here's what rhymes with birthparent.
parent apparent aberrant stepparent unapparent transparent godparent nontransparent semitransparent Words that almost rhyme with birthparent
appellant repellent propellant repellant propellent peasant tenant parrot terraced barest pennant beret present pleasant merit pendant merest penchant pheasant rarest tenet ferret carat karat pregnant segment attendant embarrassed impairment lieutenant dentist remnant senate temperate chestnut crescent tempest despot legate menaced pellet premised haircut prefaced pubescent trenchant clement demerit densest freshest rennet senescent cellist regnant unembarrassed wettest inerrant scarcest suppressant credit dependent assessment breakfast defendant adolescent unpleasant descendant fluorescent helmet incessant inherit sentenced template velvet expectant ascendant evanescent quiescent catgut dependant depressant iridescent phosphorescent repentant acquiescent barefaced descendent effervescent obsolescent opalescent sextant vestment zealot amercement ascendent putrescent directest florescent helot perfectest shellacked developed amendment discredit refreshment apprenticed convalescent omnipresent resplendent inclement biochemist contestant unrepentant accredit disinherit divestment intensest librettist revetment coalescent enmeshment efflorescent guillemot independent investment commencement resentment superintendent transcendent contentment enveloped interdependent undeveloped disinfectant incandescent presentment reassessment retrenchment entrenchment luminescent cruellest intrenchment codependent decongestant prepubescent overdependent antidepressant disinvestment discontentment redeveloped noncredit underdeveloped reinvestment overdeveloped recommencement