Definitions

1. adjective

Having a single note or a steady, unchanging quality, or (of a function or sequence) never decreasing and never increasing.

“The monotonic rise in the company’s stock value surprised investors.”

2. noun

A monotonic function or a sequence that never decreases and never increases.

“The mathematician studied the properties of monotonic sequences.”

3. adverb

In a steady, unchanging manner.

“The train moved monotonic through the countryside.”