He seemed 'confident' of success. [=sure that he would succeed]
He has become more 'confident' in his Spanish-speaking skills.
The players seem more relaxed and 'confident' this season.
(..) Last night, hundreds of homes in East Hawkins were affected, We reached out to Roane County Water and Electric, and a spokesperson says that they are confident power will be restored to all remaining homes - - - (..)2016 TvShow: Stranger Things Title: Chapter One: The Vanishing of Will Byers Season: 1 Episode 1