澄すまし込こむ

godan verb (-mu), intransitive verb

put on airs; act important; look smug

Describes someone behaving in a self-important, smug, or affectedly refined manner. Often used critically.

• 彼かれは会かい議ぎで澄すまし込こんで、何なにも発はつ言げんしなかった。

  He sat there looking smug at the meeting and didn't say anything.

• あの人ひとはいつも澄すまし込こんでいて、近ちか寄よりがたい。

  That person always puts on airs and is hard to approach.