- Definitions|0
- Thesaurus|121
- Abbreviations|0
13 entries under expression topic. ×
| brown study(noun, dream, daydream, trance) | |
| pipe dream(noun, fantasy, dream, thoughtfulness) | |
| absence of mind | |
| castles in the air(noun, idiom, study, vision) | |
| depth of thought | |
| fit of abstraction | |
| head trip(noun, fantasy, dream, thoughtfulness) | |
| lost in thought | |
| mind trip(noun, study, vision, fantasy) | |
| blue devils(thoughtfulness, musing, reflectiveness) | |
| blue funk(thoughtfulness, musing, reflectiveness) | |
| down trip(thoughtfulness, musing, reflectiveness) | |
| low spirits(thoughtfulness, musing, reflectiveness) |
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| APA | Smart Define. (2015). castle-building thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/castle-building/thesaurus/synonyms |
| Chicago | Smart Define. 2015. "castle-building thesaurus" https://smartdefine.org/castle-building/thesaurus/synonyms (accessed September 22, 2026). |
| Harvard | Smart Define 2015, castle-building thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/castle-building/thesaurus/synonyms>. |
| MLA | Smart Define. "castle-building thesaurus" 14 April 2015. Web. 22 September 2026. <https://smartdefine.org/castle-building/thesaurus/synonyms> |