adverb

Messages.form.
  1. quickly, swiftly, expeditiously.
  2. long ago, already.

Variations

Pronunciation Kanji Kana Is Common
 
疾く とく

Contained Kanji Breakdown

rapidly
シツ はや.い (Late Jr. High, 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)