Depreciative in a sentence as an adjective

And I use the word "professional" in a depreciative way.

People say this as if it was somehow depreciative, but I rather appreciate writing safe C in Java, which is something WG14 will never take the effort to improve.

Depreciative definitions

adjective

tending to decrease or cause a decrease in value; "a depreciating currency"; "depreciatory effects on prices"

See also: depreciating depreciatory

adjective

tending to diminish or disparage; "belittling comments"; "managed a deprecating smile at the compliment"; "deprecatory remarks about the book"; "a slighting remark"

See also: belittling deprecating deprecative deprecatory depreciatory slighting