Monotone

n.	1.	(Mus.) A single unvaried tone or sound.
	2.	(Rhet.) The utterance of successive syllables, words, or sentences, on one unvaried key or line of pitch.

Noun	1.	monotone - an unchanging intonation Synonyms: droning, drone
	2.	monotone - a single tone repeated with different words or different rhythms (especially in rendering liturgical texts)
Adj.	1.	monotone - of a sequence or function; consistently increasing and never decreasing or consistently decreasing and never increasing in value Synonyms: monotonic
	2.	monotone - sounded or spoken in a tone unvarying in pitch; "the owl's faint monotonous hooting" Synonyms: monotonous, monotonic

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