depreciate/dɪˈpriʃieɪt/Third PersondepreciatesPresent ParticipledepreciatingPast TensedepreciatedPast Participledepreciated1to diminish in value, especially over timeSynonyms: devaluedevaluateundervalueAntonyms: appreciate2lower the value of somethingAntonyms: appreciate3to regard someone or something as insignificantSynonyms: vilipenddeprecate