Pyrrhonic, agnostic, cagey, cautious, chary, cynical, disbelieving, doubtful, doubting, dubious, envious, from Missouri, green-eyed, green, green with jealousy, hesitant, hesitating, horn-mad, in doubt, invidious, jaundice-eyed, jaundiced, jealous, leery, mistrustful, mistrusting, nervous, questioning, sceptical, scrupulous, shy, skeptical, suspecting, suspicious, unbelieving, uncertain, uneasy, unsure, untrusting, wary, yellow-eyed, yellow