Watched out is a phrasal verb that means to be vigilant or cautious. The antonyms for this expression are being careless or reckless. Instead of watching out, one could be neglectful, ignoring potential dangers, or inattentive, failing to pay attention to one's surroundings. Other antonyms include being impulsive, hasty, and rash, disregarding the consequences of actions. These actions can lead to accidents, injuries or worse, and it is advisable to always be careful and alert. Therefore, it is necessary to avoid the antonyms of watched out and always be observant and cautious in different situations.