gainsayer

词形变化：

名词: gainsayer | 动词过去式: gainsaid | 动词过去分词: gainsaid | 动词现在分词: gainsaying | 动词第三人称单数: gainsays |

同义词：

negative | denial | contradiction | controvert | deny | dispute | oppose | naysay | contradict | argue | refute | contravene | disaffirm | negate | challenge |

反义词：

admit |