甘あまっちょろい

i-adjective

overly optimistic; naive; easygoing; irresponsible

Colloquial, mildly derogatory. Describes a person, plan, or attitude that is too soft, naive, or lacking seriousness. Often used when someone underestimates a situation or is not strict enough.

• そんな甘あまっちょろい考かんがえじゃ、試し験けんに受うからないよ。

  With such a naive way of thinking, you won't pass the exam.

• 彼かれはいつも甘あまっちょろいことばかり言いっている。

  He's always saying overly optimistic things.