A "left-handed compliment" is a statement that appears to be a compliment, but is actually critical or insulting. Synonyms for this phrase include "backhanded compliment," "left-handed praise," and "half-hearted compliment." Other terms for this type of remark include "faint praise," "damning with faint praise," and "underhanded compliment." These types of comments can be frustrating or hurtful, as they often diminish the recipient's achievements or abilities. It's important to be aware of these types of remarks, both as a giver and receiver, and to strive to communicate clearly and effectively in all interactions.