自信たっぷり

Meanings

1. Na-adjective, Adverb

   confident; full of confidence; cocky; full of oneself

• トムは自信じしんたっぷりだ。

  Tom has a lot of confidence.

• なんと彼かれは自信じしんたっぷりなんだろうと彼女かのじょは言いった。

  She said, "How confident he looks!"