decidedly

adjective

1. in no way uncertain or ambiguous; unquestionable; unmistakable: a decided victory.
2. free from hesitation or wavering; resolute; determined: a decided approach to a problem.

adjective (prenominal)

1. unmistakablea decided improvement
2. determined; resolutea girl of decided character

adj.

“resolute,” 1790, past participle adjective from decide. A decided victory is one whose reality is not in doubt; a decisive one goes far toward settling some issue. Related: Decidedly.