自じ信しん満まん々まん

na-adjective, noun which may take the genitive case particle 'no', taru-adjective, adverb taking the 'to' particle

full of confidence; brimming with self-confidence

Describes a person who is extremely confident, often to the point of appearing self-assured or even cocky. Can be used positively or negatively depending on context.

• 彼かれは自じ信しん満まん々まんでプレゼンに臨のぞんだ。

  He approached the presentation full of confidence.

• 自じ信しん満まん々まんな態たい度どが時ときに反はん感かんを買かうこともある。

  A brimming-with-confidence attitude can sometimes invite resentment.