甚だしい[はなはだしい] (hanahadashii)

文句もんくを 言いうなんて 失礼しつれいも 甚はなはだしい

It is outrageous of them to complain.

夏にエアコンをつけすぎて寒いなんて、電力浪費も甚だしい。

It's horrible that they feel cold in summer while overusing their air conditioner and wasting electricity.

それは甚だしい偏見です。

That is an extreme prejudice.

あんなことを 彼女かのじょに 言いうなんて 非常識ひじょうしきも 甚はなはだしい。

It's quite absurd of you to tell her that sort of thing.

人間が「地球を救う」なんて言うのは、思い上がりも甚だしいと思う。

I think saying that people should "save the earth" is the height of hubris.

公けの席上であんな発言をするなんて無考えも甚だしい. How thoughtless [stupid] of him to say such a thing on a formal occasion.彼は会議の席上突然ふっと姿を消すことがあった. Once in a while in the middle of a meeting he would abruptly stand up and leave the room.議定の席上、経宗は院殿上で除目を行うことを提案した。

At the meeting, Tsunemune suggested having Jimoku at the In dono (cloistered emperor's palace).

今どき女性は家庭を守るものだなんて言うのは時代錯誤も甚だしい. To say that women should be homemakers is to be completely out of touch with the times.その薬を生産ラインに乗せるまでには文字どおり試行錯誤の連続だった. Getting that medicine into production was literally a continuous process of trial and error.しかし、時代錯誤の政策を次々と打ち出す後醍醐天皇の親政によって政権は崩壊。

However, the direct administration of Emperor Godaigo failed and his administration was ruined because he adopted a package of anachronistic measures in sequence.

人を愚弄するのも甚だしい. You carry your joke too far.それは甚だしい時間の空費だ. It is an intolerable [a frightful] waste of time.寒気が甚だしい[厳しい]. It is extremely [bitterly] cold.当地は寒暑の差が甚だしい所です. There are great extremes [changes] of temperature here.その国は寒暑の差が甚だしい. The country is marked by a wide range of temperature between the hottest and coldest periods of the year.あんなことを彼女に言うなんて非常識も甚だしい。

It's quite absurd of you to tell her that sort of thing.