placidness

词形变化：

副词: placidly | 名词: placidity |

同义词：

calm | tranquil | still | quiet | peaceful | smooth | untroubled | pacific | orderly | collected | composed | patient | even-tempered | equable | easygoing | docile | content | good-natured | mild | imperturbable | serene | gentle | sedate | clam | unruffled | good-tempered |

反义词：

rude |

词义辨析：

同义参见:

joy