The antonyms for the phrase "watching out" are neglecting, ignoring, overlooking, disregarding, and remaining unaware. Neglecting implies a failure to give proper attention, while ignoring suggests intentionally disregarding something. Overlooking and disregarding both mean to ignore or fail to notice something, while remaining unaware implies a lack of knowledge or information. Watching out is a phrase used to express caution and attentiveness, while its antonyms suggest a lack of care or attention paid to one's surroundings. It is essential to pay attention and stay vigilant, especially in dangerous situations, to avoid any potential harm.