The New York Stock Exchange started out as a coffee house.
unsolved, unresolved
(adjective) not solved; “many crimes remain unsolved”; “many problems remain unresolved”
Source: WordNet® 3.1
unsolved (not comparable)
Not yet solved.
Source: Wiktionary
3 April 2025
(noun) an assemblage of parts that is regarded as a single entity; “how big is that part compared to the whole?”; “the team is a unit”
The New York Stock Exchange started out as a coffee house.