Synonyms for monotonous

Adjective

1. monotone, monotonic, monotonous, unmelodious (vs. melodious), unmelodic, unmusical

usage: sounded or spoken in a tone unvarying in pitch; "the owl's faint monotonous hooting"

2. humdrum, monotonous, dull (vs. lively)

usage: tediously repetitious or lacking in variety; "a humdrum existence; all work and no play"; "nothing is so monotonous as the sea"