はっと

はっと
adverb
with a start; suddenly (realizing)
1. with a start; suddenly (realizing)
Describes the moment of sudden realization, surprise, or being startled.
はっと()がついた。
I suddenly realized.
Common expression
大事(だいじ)なことをはっと(おも)()した。
I suddenly remembered something important.
はっとするような(うつく)しさだった。
It was a breathtaking beauty.
はっとする = to be startled/struck
(うし)ろから(こえ)をかけられてはっとした。
I was startled when someone called out to me from behind.
寝坊(ねぼう)したことにはっと()がついて、(いそ)いで(いえ)()た。
I suddenly realized I had overslept and hurried out of the house.

はっと describes the psychological moment of sudden realization, awareness, or being startled. It captures the instant "jolt" of recognition.

COMMON PATTERNS:

  • はっと()がつく: to suddenly notice/realize
  • はっとする: to be startled, to have a sudden realization
  • はっと()()める: to suddenly wake up (startled awake)
  • はっとさせられる: to be struck by (something that makes you realize)
  • はっと(いき)をのむ: to gasp (in surprise)

USAGE:
Used for both pleasant surprises (sudden beauty) and alarming realizations (noticing danger). Always implies the reaction is instantaneous and involuntary.

SIMILAR WORDS:

  • びっくり: surprised, startled (more about shock)
  • ぎくっと: startled with a jolt (often from guilt or fear)
  • ふと: casually, by chance (less intense)