The antonyms for the phrase "went out of one's depth" include expertise, mastery, proficiency, and thoroughness. These words indicate the ability to complete a task with confidence, skill, and knowledge, without getting overwhelmed or outmatched. Individuals who possess these qualities are well-equipped to handle challenging situations and are more likely to succeed in their pursuits. In contrast, someone who has "gone out of their depth" may lack the necessary knowledge, experience or preparedness to complete a task or handle a situation, which can lead to frustration, stress or even failure. Therefore, it is essential to develop expertise, proficiency, and thoroughness in one's chosen field or area of work to avoid "going out of one's depth.
