Select the most appropriate antonym of the given word.

Viscous 

Watery

The correct answer is option 3. Watery

The most appropriate antonym of the word viscous is watery.

• Viscous means "having a thick, sticky consistency."
• Watery means "having the consistency of water; thin and watery."
• Grim means "stern, severe, or forbidding."
• Brutal means "savagely violent or harsh."
• Thick means "having a relatively high density or consistency."