searching blindly; groping around
Literally 'blind searching'; refers to fumbling or searching for something without being able to see, or figuratively doing something without clear guidance. The term contains 盲 (blind), which is now considered a sensitive word; in modern polite contexts, alternatives like 目隠し探し or 手探り are often preferred.
I searched for the key in the dark, groping around blindly.
Children in the old days often played blind searching games.
Compound of 盲 (blind) + 探し (searching). The exact historical origin is uncertain, but it likely arose as a descriptive term for searching without sight.