A bite of wisdom

Which of these words describes something extremely impressive?

Subliminal

Superfluous

Strenuous

Stupendous

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stupendous

1. extremely impressive

"they congratulated him on his stupendous achievement"

Choice "A": Subliminal % of users selected this choice.
Choice "B": Superfluous % of users selected this choice.
Choice "C": Strenuous % of users selected this choice.
Choice "D": Stupendous % of users selected this choice.