Decidedly in example sentence
If Weissmuller looks tired, the chimp playing Cheeta is not as good as the others, but the worst character is Benji, an obnoxious mailman who sings horrendous songs (that have a Caribbean air, in a location supposed to be Africa and shot in México!) Boring and decidedly of dubious taste, it was a sad farewell to Weissmuller's Tarzan.