Ant. Grown, developed, mature; aged; confirmed, set.
Nasty. Filthy, foul, dirty, offensive, damp, disgusting, disagreeable, wet; indecent, obscene.
Ant. Pleasant, sweet, agreeable, savory, nice, pure.
Nation. People, race, stock; realm, community, state, commonwealth.
Native. Innate, natal, natural, original, indigenous.
Ant. Alien, artificial, foreign, unnatural, acquired, assumed.
Natural. Native; essential, normal, regular, intrinsic, cosmical, spontaneous, original, artless, ingenuous; kind, affectionate; genuine, unaffected.
Ant. Abnormal, monstrous, unnatural, improbable, adventitious, fictitious, coarse; artful, affected.
Nature. Creation, universe; essence, constitution; kind, sort, character, quality; temper, disposition, mood; mind, intelligence; vitality.
Ant. Thing, subject, object, man, being, creature, monstrosity, unnaturalness; art, fiction, romance, invention.