Ideating refers to the action of generating or developing ideas. Therefore, antonyms for ideating would be doing the opposite of that, such as disregarding, ignoring, or neglecting ideas. Other antonyms for ideating could be not brainstorming, not planning, or not problem-solving, since these activities are closely related to ideating. Additionally, antonyms for ideating could also include activities that do not require creativity, such as mindlessly going through the motions or simply accepting the status quo without considering alternatives. In essence, antonyms for ideating can be seen as any action that fails to produce or consider innovative concepts.