A function is monotone if, when one increases any of the inputs, the output never decreases (it can only increase or stay the same) A Boolean circuit is monotone if it consists only of AND and OR gates, no NOT gates
an unchanging intonation a single tone repeated with different words or different rhythms (especially in rendering liturgical texts) sounded or spoken in a tone unvarying in pitch; "the owl's faint monotonous hooting
If someone speaks in a monotone, their voice does not vary at all in tone or loudness and so it is not interesting to listen to. The evidence was read out to the court in a dull monotone
A monotone sound or surface does not have any variation in its tone or colour. He was seen on TV delivering platitudes about the crisis in a monotone voice. a sound or way of speaking or singing that continues on the same note without getting any louder or softer, and therefore sounds very boring
A sequence of numeric values is monotone (or monotonic) if either: each element in the sequence is larger than (or equal to) its predecessor, or each element in the sequence is smaller than (or equal to) its predecessor A sequence is monotonically increasing if each element in the sequence is larger than its predecessor; a sequence is monotonically decreasing if each element in the sequence is smaller than its predecessor A sequence is monotonically non-decreasing if each element in the sequence is larger than, or equal to, its predecessor A sequence is monotonically non-increasing if each element in the sequence is smaller than, or equal to, its predecessor