- to make or become less
- (transitive) to make little of
WordReference Random House Learner's Dictionary of American English © 2026
less•en /ˈlɛsən/USA pronunciation
v.
WordReference Random House Unabridged Dictionary of American English © 2026- to (cause to) become less;
reduce: [no object]His shyness lessened as he grew older.[~ + object]Cold lessens feeling.
less•en
(les′ən),USA pronunciation v.i.
v.t.
- to become less.
v.t.
- to make less;
reduce. - [Archaic.]to represent as less;
depreciate;
disparage.
- 1300–50; late Middle English lessenen, lasnen (see less, -en1); replacing Middle English lessen
Collins Concise English Dictionary © HarperCollins Publishers::
lessen /ˈlɛsən/ vb
'lessened' also found in these entries (note: many are not synonyms or translations):