1. expressing disapproval or seeking to ward off something unwanted; apologetic or placating in tone
2. intended to express disapproval or protest against something

Examples

• She raised her hand in a depreciatory gesture, hoping to calm the angry crowd.
• He spoke in a depreciatory tone, apologizing for the delay.
• The depreciatory look on her face showed she disagreed with the decision.
• He made a depreciatory comment about his own work before presenting it.
• The committee issued a depreciatory statement regarding the controversial policy.
• She gave a depreciatory smile, as if to say she meant no offense.