Meaning of “constant” - Learner’s Dictionary

constant

adjective uk us /ˈkɒnstənt/
FREQUENT

B2 happening a lot or all the time:

These machines are in constant use.
She's in constant pain.
SAME LEVEL

staying at the same level:

The temperature remained constant.
constantly adverb

B2

He's constantly changing his mind.

(Definition of “constant” from the Cambridge Learner’s Dictionary © Cambridge University Press)