Refers to a feeling of comfort, satisfaction, or pleasantness. Often used in compounds like 快感 (pleasant sensation) or 快適 (comfortable).
When I soak in a hot spring, I feel pleasure both physically and mentally.
rapid train (abbreviation)
Abbreviation of 快速 (rapid train). Used in train service names like 快特 (rapid limited express). Not used as a standalone word for 'rapid'.
The 快 in 快特 is an abbreviation of 快速 (rapid).
The kanji 快 carries meanings of 'pleasant' and 'comfortable'. The abbreviation sense derives from 快速 (rapid).
light; nimble; springy · light-hearted; cheerful; casual · improving; recovery; convalescence
clear weather; cloudless weather; fine weather
clear; lucid; unequivocal
exhilarating; thrilling; intensely pleasurable
sweeping victory; easy win
ready consent; willing agreement
pleasant sleep; good sleep; sleeping well
cheerful; lively; lighthearted
complete recovery; full recovery of health
good condition; going well; smooth
recovery; convalescence; improvement (of a condition)
fast running; speedy sailing; brisk movement
recovery from illness
recovery; convalescence
nice guy; pleasant fellow; good-natured man
nimble-footed; quick on one's feet; fast running legs
emotionally uplifting; stirring
pleasure; delight; pleasant event
splendid work; masterpiece
comfortable bowel movement; regular bowel movement
sharp sword