calm air
词形变化：
副词: calmly | 形容词比较级: calmer | 形容词最高级: calmest | 名词: calm-ness | 动词过去式: calmed | 动词过去分词: calmed | 动词现在分词: calming | 动词第三人称单数: calms |
同义词：
quiet | tranquil | peaceful | still | cool | peace | stillness | pacify | soothe | calmness | calm down | quieten | quietness | tranquillity | quiet down | serene | placid | tranquilize | tranquility | serenity | pacific | lull | inactive | composed | temperate | sober | hush | conciliate | appease | philosophical | mild | silence | peaceable | patient | collected | compose | soften | undisturbed | allay | quell | assuage | stony | relaxation | alleviate | equable | relieve | sunshine | moderate | content | tranquillise | tranquillize | steady | sedate | equanimity | cool off | composure | cool it | settle down | becalm | calm air | unagitated | simmer down | chill out | noiseless | silent |
反义词：