depreciatingly Definition

depreciate
verb depreciated, depreciating

tr & intr
1. To fall, or make something fall, in value.

Thesaurus: deteriorate, decrease, lessen, drop, reduce, worsen, decay, deflate; Antonym: appreciate.
2. To be contemptuous of the worth of something; to belittle someone or something.

Thesaurus: belittle, lower, run down, decry, underrate, undervalue, disparage, ridicule, trivialize, put down (slang).

Derivative: depreciatingly
adverb

Etymology: 15c: from Latin depretiare, depretiatum to lower the price of.