WordValeconstant
a factor that does not change
In more detail
1. (adjective) happening all the time or very frequently; never stopping
2. (adjective) staying the same; not changing
3. (noun) a quantity or value that does not change
Examples
- 1. She complained about the constant noise from the traffic outside.
- 2. The temperature in the laboratory must remain constant during the experiment.
- 3. In physics, the speed of light is a constant.
How to use constant
As an adjective, constant describes something that persists without interruption or remains stable over time. It can emphasize either frequency (constant interruptions) or stability (constant values). In scientific and mathematical contexts, constant functions as a noun for a fixed numerical or physical quantity. The word carries a neutral tone and is common in both everyday and technical usage.
Common phrases
- constant pressure
- constant reminder
- constant pain
- at a constant rate
- constant temperature
Synonyms
continuous · perpetual · steady · unchanging · invariant
Opposites
intermittent · variable · fluctuating
Word family
constantly (adverb) · constancy (noun) · inconstant (adjective)
A common mistake
Learners often confuse constant with continual; constant means uninterrupted, while continual means recurring frequently but with breaks.
Save this word in WordVale and it comes back for review right before you'd forget it — with pronunciation, real examples, and optional translations. One purchase, no subscription.
Get WordValeFREE 7-DAY TRIAL · iPHONE & iPAD