- plain
- plain [adj1] clear, obvious apparent, audible, big as life*, broad, comprehensible, definite, distinct, evident, legible, lucid, manifest, open, open-and-shut*, palpable, patent, talking turkey*, transparent, understandable, visible; concepts 529,535,576 —Ant. complex, complicated, hidden, intricate, obscured, unclear, vague plain [adj2] straightforward in speech abrupt, artless, blunt, candid, direct, forthright, frank, guileless, honest, impolite, ingenuous, open, outspoken, rude, sincere; concept 267 —Ant. abstruse, ambiguous, incomprehensible, imperceptible, obscure, unclear, vague plain [adj3] normal, everyday average, common, commonplace, conventional, dull, homely, lowly, modest, ordinary, quotidian, routine, simple, traditional, usual, vanilla*, white-bread*, workaday; concept 547 —Ant. abnormal, complex, difficult, extraordinary, uncommon plain [adj4] unembellished, basic austere, bare, bare bones*, clean, discreet, dry, modest, muted, pure, restrained, severe, simple, spartan, stark, stripped down, unvarnished, vanilla*; concepts 485,589 —Ant. decorated, dressedup, embellished, formal, ornate plain [adj5] ugly deformed, hard on the eyes*, homely, not beautiful, ordinary, plain-featured; concept 579 —Ant. attractive, beautiful, pretty plain [n] level land champaign, expanse, field, flat, flatland, grassland, heath, level, meadow, moor, moorland, open country, plateau, prairie, steppe, tundra; concept 509
New thesaurus. 2014.