"Give nod" refers to the act of expressing approval or agreement through a gesture, such as a nod of the head. However, there are various antonyms for this phrase that express disagreement, disapproval, or even indifference towards a particular subject. Some antonyms for "give nod" include shaking the head, waving a hand, crossing the arms, raising an eyebrow, rolling the eyes, or simply remaining silent. These actions convey a message of disagreement, skepticism, or lack of interest in a situation. It is important to be aware of the various antonyms for "give nod" in order to effectively express one's opinions and feelings towards any given subject.