English dictionary

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English adjective: strenuous

1. strenuous characterized by or performed with much energy or force

SamplesStrenuous exercise.


Antonymslethargic, unenrgetic

2. strenuous taxing to the utmost; testing powers of endurance

SamplesHis final, straining burst of speed.
A strenuous task.
Your willingness after these six arduous days to remain here.

Synonymsarduous, straining



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