Synonyms for strenuous | strenuous synonyms

arduous (adjective)

Synonyms:

laborious, gruelling.

vigorous (adjective)

Synonyms:

energetic.

difficult (adjective)

Synonyms:

hard, severe, stressful.

tough (noun)

Synonyms:

heavy, stiff, straining.

intense (adjective)

Synonyms:

intensive.

grueling (noun)

exhausting, diligent, aggressive,