カッと

カッと, かっとkatto

adverb · suru verb

  1. flaring up
  2. burning hotly
  3. suddenly becoming bright
  4. flying into a rage
  5. losing one's cool
  6. opening suddenly and widely (e.g. eyes, mouth)
  7. acting resolutely

Study it in Yanamino

Data from JMdict, KANJIDIC2 (EDRDG), KanjiVG, CC-CEDICT and Make Me a Hanzi. Sources and licences