Synonyms: overjealous, jealous, green-eyed
Definition: suspicious or unduly suspicious or fearful of being displaced by a rival
Usage: a jealous lover
Similar words: distrustful
Definition: having or showing distrust
Usage: 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