noun
fantastical idea; fanciful notion; bizarre thought
Refers to an idea or notion that is strikingly unusual, imaginative, or eccentric. Often used in contexts like art, literature, or creative thinking.
彼の奇想にはいつも驚かされる。
I'm always amazed by his fantastical ideas.
この小説は奇想に満ちている。
This novel is full of fanciful notions.
Compound of 奇 (ki, 'strange, unusual') and 想 (sō, 'thought, idea'). The exact historical derivation is uncertain, but the word follows a standard Sino-Japanese pattern.