汉语翻译

a. 概念的, 想像的
【经】 名义上的

词型变化：

副词:notionally 

英语解释：

形容词 notional:

1. not based on fact; dubious
   同义词：fanciful, imaginary, imagined
2. not based on fact or investigation
   同义词：speculative
3. indulging in or influenced by fancy
   同义词：fanciful
4. being of the nature of a notion or concept
   同义词：conceptional, ideational

例句：

1. My calculation is based on notional figures, since the actual figures are not yet available.
   因尚无实际数字，我是根据估计的数字计算的。

详细解释：

no.tion.al

adj.（形容词）
Of, containing, or being a notion; mental or imaginary.
概念的，包含概念的或是概念的；想象的或虚构的
Speculative or theoretical.
抽象或理论的
Linguistics Conveying an idea of a thing or an action; having full lexical meaning as distinguished from relational meaning. The worddid is notional in We did the work and relational in We did not agree.
【语言学】 表意的，实义的：表达事物或行动的想法；有完全的词义而不同于关系含义的did 在 We did the work 中是表意的，在 We did not agree 中是表关系的

【引伸】
no.tionally
adv.（副词）