decrescent
adjective
de·cres·cent di-ˈkre-sᵊnt 
: becoming less by gradual diminution : decreasing, waning
Word History
Etymology
alteration of earlier decressant, from Anglo-French, present participle of Anglo-French decrestre to decrease
First Known Use
1610, in the meaning defined above
decrescent
adjective
as in increscent
Synonyms & Similar Words
Relevance
- increscent
- imperceptible
- stepped
- tapered
- gradual
- inching
- piecemeal
- phased
- gradational
- progressive
- incremental
- step-by-step
Antonyms & Near Antonyms
- sudden
- acute
- abrupt
- dynamic
- discontinuous
- sharp
- volatile
- saltatory
- changeable
- meteoric