wariest

adj. cautious, suspicious

Adjective
1. marked by keen caution and watchful prudence; "they were wary in their movements"; "a wary glance at the black clouds"; "taught to be wary of strangers"
(antonym) unwary
(similar) on guard, on one's guard(p), upon one's guard(p), on your guard
(attribute) wariness, chariness
2. openly distrustful and unwilling to confide
(synonym) leery, mistrustful, suspicious, untrusting
(similar) distrustful

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