かつてない

(1)having no previous example or precedent or parallel; "a time of unexampled prosperity"

(2)前例や先例や類似するものがない

(3)unsurpassed in some respect up to the present; "prices at an all-time high"; "morale at an all-time low"; "among the all-time great lefthanders"

(4)現在まである意味において勝るものがない

(1)