- 1[usually before noun] happening all the time or repeatedly constant interruptions a constant stream of visitors all day Babies need constant attention. This entrance is in constant use.
Definitions on the go
Look up any word in the dictionary offline, anytime, anywhere with the Oxford Advanced Learner’s Dictionary app.
- 2that does not change synonym fixed traveling at a constant speed of 50 mph Ross was his most constant and loyal friend.
Check pronunciation: constant