Meaning & use

constant

adjective·Academic

Occurring continuously or remaining the same without change over time.

See it in a sentence

The constant noise from the construction site made it hard to concentrate.

Her constant support helped him get through the most difficult year of his life.

A note on using this word

In math and science, constant also works as a noun for a fixed value that never changes, such as the speed of light.

Words with a similar meaning

Choose a synonym to suit the sentence. Meanings can overlap without being identical.

Words with an opposite meaning

Another way to use it

2. noun

A fixed value or quantity that does not change within a given context.

In the equation, k represents a constant that stays the same for every trial.

Make it your own

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