weaken

weaken

过去式：weakened

过去分词：weakened

现在进行时：weakening

词形变化：

名词: weakener | 动词过去式: weakened | 动词过去分词: weakened | 动词现在分词: weakening | 动词第三人称单数: weakens |

同义词：

decline | fail | dilute | enervate | deteriorate | give in | cave in | undermine | give way | damage | destabilize | detract from | shake | water down | thin | adulterate | enfeeble | exhaust | soften | droop | languish | impair | disable | fade | cripple | depress | water | faint | lessen | sink | silence | loosen | sap | pine | flag | lower | step down | de-escalate | sabotage | damp | counteract | subvert | dampen | countermine | break |

反义词：

strengthen |

词义辨析：

同义参见:

droop  disable  dilute  depress  lower  loosen  lessen  decline  languish  cripple  undermine  flag  water  impair  silence  sap  sink  soften  faint  fail  fade  pine  

反义:

vt.vi.使弱; 变弱

strengthen