Serene, tranquil (4)
<span class="explanation-format__ClueExplanation">I believe this is a double definition.<br/ ><br/ >'<span class="explanation-format__original">serene</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ >'<span class="explanation-format__original">tranquil</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(synonyms)</span><br/ ><br/ ></span>
(Other definitions for calm that I've seen before include "Imperturbable, soothe" , "Still - force 0 on the Beaufort scale" , "Placid and unruffled" , "Peace, tranquillity" , "'After a storm comes a ....'" .)
<span class="explanation-format__ClueExplanation">This clue is a double definition.<br/ ><br/ >'<span class="explanation-format__original">serene</span>' is the first definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ >'<span class="explanation-format__original">tranquil</span>' is the second definition.<br/ ><span class="explanation-format__explanation">(similar in meaning)</span><br/ ><br/ ></span>
(Other definitions for peaceful that I've seen before include "Serene" , "Quiet" , "Calm and undisturbed by strife" , "Not violent" , "Placid, not belligerent" .)