adj. 25B6; adjective CAUTIOUS, careful, circumspect, wary, chary, on one's guard, reluctant, non-committal, reticent, restrained, reserved; informal cagey.
GUARDED
Meaning of GUARDED in English
Concise Oxford thesaurus English vocabulary. Краткий оксфордский словарь английского языка тезаурус. 2012