=
KEY: Congenial.
SYN: Natural, concordant, consonant, grateful, sympathetic, kindred.
ANT: Unnatural, abbhorant, discordant, dissonant, disagreeable, ungrateful, antagonistic, alien, dissimilar, uncongenial.
=
KEY: Congenital.
SYN: Coeval, coetaneous, natural, inherent, innate, immanent, ingrained, incarnate, connate, ingenerate.
ANT: Unnatural, uncongenial, acquired, habitual, extraneous, artificial, adscititious, adventitious, assumed.
=
KEY: Congestion.