What is another word for "monotonous"?

Roget's Thesaurus (1911) lists these synonyms for "monotonous": accord, accordance, agreement, all, always, and, assimilate, bald, become, bland, blanket, book, boring, call, careless, caught, chaste, childish, clockwork, cold, colorless, come, common, commonplace, conform, conformably, conformity, connatural, connaturality, connaturalness, consistency, consistent, consonance, constancy, conte, damp, deadly, dearth, depress, diffuse.