Appreciative, complimentary, praiseful, flattering, laudatory, commendatory, respectful, admiring, eulogistic, positive, honoring, panegyrical, celebratory, supportive, congratulatory, benign, gracious, kind, considerate, civil, polite, courteous, approving, endorsing, sanctioning, cherishing, esteeming, valuing, respecting, admiring. These are a few antonyms for the word "depreciatory" which means expressing disapproval or lowering the value of something. When used in reference to a person, it means belittling or disparaging the person. Expressing positive and respectful words and gestures can have a tremendous impact on an individual's confidence and self-esteem. It is essential to eliminate depreciatory comments and cultivate a healthy and supportive environment.