Synonyms of decrease in English:

decrease


See definition of decrease

verb

1‘pollution levels had been gradually decreasing’

SYNONYMS
lessen, become less, grow less, become smaller, grow smaller, reduce, drop, diminish, decline, dwindle, contract, shrink, fall off, die down
abate, subside, let up, tail off, ebb, wane, taper off, peter out, lighten
sink, slump, plummet, plunge
ANTONYMS

increase

2‘you could exercise to decrease the amount of fat in your body’

SYNONYMS
reduce, lessen, make fewer, make less, lower, cut back, cut down, cut back on, cut down on, cut, curtail, contract, diminish, narrow, pare down, slim down, tone down, temper, weaken, deplete, minimize
informal slash

noun

1‘a decrease in crime’

SYNONYMS
reduction, drop, lessening, lowering, decline, falling off
letting up, slackening, downturn, cut, cutback, curtailment, diminution, contraction, shrinkage, ebb, wane, de-escalation
dying down, abatement
North American downtick
ANTONYMS

increase