"Hast seat" can be replaced with various synonyms. Some of these synonyms are provided below:
1. Quick seat
2. Swift chair
3. Speedy stool
4. Rapid bench
5. Hurry seat
6. Fast ottoman
7. Agile throne
8. Instant couch
9. Prompt recliner
10. Immediate armchair.
These synonyms can be utilized based on the context, and they provide a diverse range of options to replace the term "hast seat." While the term may not be commonly used, having access to synonyms enhances one's writing and communication skills, ensuring that the right word is chosen for the situation.