certainly

同义词：

naturally | surely | indeed | simply | yes | so | doubtless | really | of course | for sure | sure | okay | well | definitely | positively | without doubt | undoubtedly | unquestionably | absolutely | emphatically | sure enough | for certain |

反义词：

perhaps |

词义辨析：

同义参见:

indeed

well¹

yes

surely

so

simply

doubtless

really

naturally

反义:

ad.的确地; 当然

perhaps