There are several synonyms for the phrase "won't take no for an answer". These include persistent, adamant, insistent, unyielding, determined, forceful, resolute, unwavering, unrelenting, and relentless. These words all convey a sense of someone who is determined to get their way and will not give up easily, even in the face of resistance or opposition. They may be used to describe someone who is very persuasive or who has a strong personality that can be hard to resist. These synonyms can be used in a variety of contexts, from business negotiations to personal relationships, and can help to convey the idea of someone who is relentless in their pursuit of their goals.
