Synonyms of monotone

Noun

1. monotone, drone, droning, intonation, modulation, pitch contour

usage: an unchanging intonation

2. monotone, note, musical note, tone

usage: a single tone repeated with different words or different rhythms (especially in rendering liturgical texts)

Adjective

1. monotonic (vs. nonmonotonic), monotone, decreasing monotonic, increasing monotonic

usage: of a sequence or function; consistently increasing and never decreasing or consistently decreasing and never increasing in value

2. flat, monotone, monotonic, monotonous, unmodulated (vs. modulated)

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

Definition and meaning of monotone (Dictionary)