IPA: /ˌʌn.rɪˈzɜːrvd.nəs/
KK: /ʌnˈrɛzərvdnəs/
The quality of being open and honest without holding back feelings or opinions.
Her unreservedness in expressing her thoughts made the discussion very engaging.
Unreservedness → It is formed from "un-" (meaning not) and "reserved" (from Latin "reservare", meaning to keep back or hold). The suffix "-ness" (meaning the state or quality of) indicates a state of being. Therefore, "unreservedness" refers to the quality of not holding back or being open and candid.
Think of 'not holding back' ('un-') and being 'open' ('reserved') — that's what unreservedness means.