滅多にない

(1)not widely known; especially valued for its uncommonness; "a rare word"; "rare books"

(2)広く知られていない

(3)特に普通でないものに価値を置いた

(4)recurring only at long intervals; "a rare appearance"; "total eclipses are rare events"

(5)長い休止期間を経てのみ再発するさま

(1)