plain
adjective
°(now _ rare regional) Flat, level.
verb
°(colloquial) Simply.
°(now _ rare poetic) To lament, bewail.
noun
°An expanse of land with relatively low relief.
°(obsolete) A plane.
synonyms: no-frills, normal, ordinary, simple more» , unadorned, unseasoned, flatland, high plain, plateau, prairie, steppe