deprecating

(verb) express strong disapproval of; deplore. Synonyms: deprecate.

(verb) belittle. Synonyms: deprecate, depreciate, vilipend. Example: "The teacher should not deprecate his student's efforts."

(adj) tending to diminish or disparage. Synonyms: belittling, deprecative, deprecatory, depreciative, depreciatory, slighting. Examples: "Belittling comments." "Managed a deprecating smile at the compliment." "Deprecatory remarks about the book." "A slighting remark."