Passing an eye over something means taking a quick glance or glancing briefly. The antonyms for this phrase include scrutinizing, examining, inspecting, observing, and studying. These words imply a more thorough and detailed approach to looking at something. Scrutinizing suggests a careful examination or a close inspection. Examining also implies careful attention and analysis, while inspecting suggests a review for accuracy or compliance. Observing connotes a more prolonged and attentive observation, while studying suggests a deliberate and focused effort to comprehend or learn something. Thus, while passing an eye over something is quick and cursory, antonyms like scrutinizing, examining, inspecting, observing, and studying convey a more serious and in-depth approach.