Definitions

1. adjective

not peaceful or calm; restless or agitated

“The untranquil waters of the lake made it difficult to sail.”

2. adverb

not peacefully or calmly

“The children were untranquil, refusing to settle down for the night.”

3. noun

a state of unrest or agitation

“The city was in a state of untranquil, following the recent protests.”