1. 冒充的：suppositional 想象的 | supposititious 冒充的 | suppositive 想象的

2. supposititious的翻译

2. 伪的;冒充的;推定的：supposition 假定;推定 | supposititious 伪的;冒充的;推定的 | suppress length indicator 抑制长度指示器

3. 偷偷掉换的：偷偷地走catfoot | 偷偷掉换的supposititious | 偷偷摸摸的catfootedcatlikecoverthole-and-cornersurreptitiousthievish

4. 偷偷掉换的/冒充的/想象的/假的/私生的：suppositional /想象的/推测的/推想的/ | supposititious /偷偷掉换的/冒充的/想象的/假的/私生的/ | suppositive /想象的/假定的/

1. based primarily on surmise rather than adequate evidence

    e.g. theories about the extinction of dinosaurs are still highly conjectural
           the supposed reason for his absence
           suppositious reconstructions of dead languages
           hypothetical situation

    Synonym: conjecturaldivinatoryhypotheticalhypotheticsupposedsuppositionalsuppositious