The antonyms for the phrase "snapped back" could include "yielded," "submitted," "receded," "retreated," or "relinquished." These words suggest a lack of resistance or forceful response, implying a more passive or submissive demeanor. In contrast to "snapping back," yielding or submission involves a willingness to give in or compromise with another person or situation. Receding or retreating suggests a withdrawal or shrinking back, while relinquishing implies giving up control or ownership. Each of these antonyms paints a different picture of a person's response in a given situation, highlighting the various ways we can react to conflict, opposition or challenge.