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Related to overjealous: overzealous
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|Adj.||1.||overjealous - suspicious or unduly suspicious or fearful of being displaced by a rival; "a jealous lover"|
distrustful - having or showing distrust; "a man of distrustful nature"; "my experience...in other fields of law has made me distrustful of rules of thumb generally"- B.N.Cardozo; "vigilant and distrustful superintendence"- Thomas Jefferson