1.
fantasy, daydream, imagination
Imaginative thoughts or ideas that are not based in reality; fanciful thinking.
空想 refers to imaginative or fanciful thinking disconnected from reality.
Common expressions:
- 空想にふける (to be lost in fantasy/daydreams)
- 空想科学小説 (science fiction)
- 空想の世界 (fantasy world)
- 空想家 (dreamer, fantasist)
Related terms:
- 想像 (imagination - more general)
- 妄想 (delusion - more negative)
- ファンタジー (fantasy - loanword)
- 夢想 (reverie, daydream)
Usage note:
空想 can be neutral or slightly negative (impractical dreaming), whereas 想像 is neutral.