What is another word for more closed-up?
Pronunciation: [mˈɔː klˈə͡ʊzdˈʌp] (IPA) 
When we describe something as "closed-up," we usually mean that it's shut tight or not open to outside influence. A similar term is "reserved," which implies a similar sense of caution or withdrawal. "Private" is another synonym, suggesting a lack of openness or willingness to share information. "Withdrawn" or "reclusive" can also describe someone who's more closed-up, suggesting a preference for solitude or isolation. Other synonyms for the term "more closed-up" are "guarded," "reticent," and "uncommunicative." Whatever the term used, these words convey a sense of someone being more cautious or introspective than open and expressive.
