CAGEY
cagey, cagy, chary
(adjective) characterized by great caution and wariness; “a cagey avoidance of a definite answer”; “chary of the risks involved”; “a chary investor”
cagey, cagy, canny, clever
(adjective) showing self-interest and shrewdness in dealing with others; “a cagey lawyer”; “too clever to be sound”
Source: WordNet® 3.1
Etymology
Adjective
cagey (comparative cagier, superlative cagiest)
Wary, careful, shrewd.
Uncommunicative; unwilling or hesitant to give information.
Synonyms: evasive, reticent
Source: Wiktionary