simple past tense and past participle of deprecate

Strongly disapproved of. / Belittled; insulted. / (computing) Said of a function or feature planned to be phased out, but still available for use.

Third-person singular simple present indicative form of deprecate

(transitive) To belittle or express disapproval of.

In manner that deprecates; insulting; belittling.

present participle of deprecate

(uncountable) The act of deprecating. / (countable) A praying against evil; prayer that an evil may be removed or prevented; strong expression of disapprobation. / Entreaty for pardon; petitioning.

In an deprecating manner; in a manner that deprecates

Tending to deprecate; disapproving. / (archaic) Tending to avert evil by prayer.

That may or should be deprecated.