ふと(おも)()

ふとおもいだす
expression
to suddenly remember; to recall out of the blue
cognition
1. to suddenly remember; to recall out of the blue
To have a memory come to mind unexpectedly, without deliberately trying to recall it.
I suddenly remembered something from the past.
When I smell this scent, it suddenly brings back memories of my childhood.

Combines the adverb ふと (suddenly, unexpectedly) with (おも)() (to remember). The key nuance is that the memory surfaces involuntarily — triggered by a sensation, a scene, or seemingly nothing at all. Very common in everyday conversation and narrative writing.

Common collocations

Usage

ふと can also combine with other verbs to express sudden, unplanned actions: