退屈

(1)lacking sufficient water or rainfall; "an arid climate"; "a waterless well"; "miles of waterless country to cross"

(2)十分な水または雨量が不足するさま

(3)so lacking in interest as to cause mental weariness; "a boring evening with uninteresting people"; "the deadening effect of some routine tasks"; "a dull play"; "his competent but dull performance"; "a ho-hum speaker who couldn't capture their attention"; "what an irksome task the writing of long letters is"- Edmund Burke; "tedious days on the train"; "the tiresome chirping of a cricket"- Mark Twain; "other people's dreams are dreadfully wearisome"

(4)そのため原因精神的な疲労に関しての関心を欠くさま

(1)