decreased Play verbMake or become smaller or fewer in size, amount, intensity, or degree. SYNONYMS abatecontractcurtailcutcut down/back (on)declinedepletedie downdiminishdropdwindleebbfall offgrow/become lessgrow/become smallerlessenlet uplightenlowermake less/fewerminimizenarrowpare downpeter outplummetplungereduceshrinksinkslashslim downslumpsubsidetail offtaper offtempertone downwaneweaken