adverb

Archaism.
  1. quickly, swiftly.

Variations

Pronunciation Kanji Kana Is Common
 
 
疾く疾く とくとく

Contained Kanji Breakdown

rapidly
シツ はや.い (8th, N1)
trailing sickness, sick radical (no. 104)
ダク ニャク ソウ
dart, arrow
や シ (2nd, N1)
person(人) variant
large, big
ダイ おお- た (1st, N5)
one, one radical (no.1)
イチ いっ ひと- (1st, N5)
person
ひと ニン ジン (1st, N5)