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"
openly distrustful and unwilling to confide
"She remained wary of her new neighbor, never sharing personal details or inviting him inside despite his friendly demeanor."
Cautious of danger; carefully watching and guarding against deception, trickery, and dangers; suspiciously prudent
"After hearing stories about pickpockets in that crowded market, I stayed wary and kept my wallet tucked deep inside my jacket."