Heeding means paying attention or taking notice, while not heeding means ignoring or disregarding. The antonyms for not heeding are heeding, listening, attending, observing, and recognizing. To heed means to give consideration, attention, or regard to something, someone, or a situation. It involves acknowledging what is being communicated and responding appropriately. Listening entails paying careful attention and understanding what is being said. Attending and observing are about being present, alert, and attentive to one's surroundings or the situation at hand. Recognizing means acknowledging or identifying something or someone. In essence, the antonyms of not heeding are all about being attentive, mindful, and responsive.