also: アイデアリズム · アイディアリズム
Philosophical or general term for idealism; often contrasted with realism. The Japanese synonym 理想主義 is more common in everyday contexts.
See also: 理想主義 (りそうしゅぎ)
His way of thinking is based on idealism.
Variant spelling with ディ for 'di'.
Variant spelling reflecting the English 'idea'.
Loanword from English 'idealism', adapted into katakana.