imaginary
要点想像、上、の
意味
- 想像[上]の,架空の,実在しない
例文
All her imaginary happiness vanished in a moment.
彼女が心に描いていた幸せのすべてが一瞬のうちに消えてしまった。
I don't believe that Santa Claus is imaginary.
サンタクロースが実在しないなんて信じない。
All the characters in this book are imaginary.
この本のすべての登場人物は想像上のものです。
語源
英語の原文（Wiktionary）
From Middle English ymaginarie, ymagynary, from Latin imāginārius (“relating to images, fancied”), from imāgō, equivalent to imagine + -ary. The mathematical sense derives from René Descartes's use (of the French imaginaire) in 1637, La Geometrie, to ridicule the notion of regarding non-real roots of polynomials as numbers. Although Descartes' usage was derogatory, the designation stuck even after the concept gained acceptance in the 18th century.