calmer
cal-mer
noun
A person or thing that brings about a state of reduced agitation or turbulence.
"He was a natural calmer of tense situations."
adjective
More peaceful, tranquil, or less agitated than previously.
"After the storm, the sea became calmer."
Thesaurus
Synonyms: tranquillize, tranquillise, tranquilize, calm down, still, lull, quiet, calm, quieten, sedate, calm air, equanimity
Antonyms: agitate, arouse, brace, charge, charge up, commove, discomposure, energise, energize, excite, perk up, rouse