The antonym of TRANQUIL is:
APeaceful
BUndisturbed
CAgitated
DComposed
Answer & Solution
Correct answer: C. Agitated
1. Tranquil means free from disturbance.
2. Composed, peaceful and undisturbed are synonyms.
3. Its opposite is agitated.
_Source: Ordway, Synonyms and Antonyms (Project Gutenberg)_