(1):
(a.) Zealous; solicitous; vigilant; anxiously watchful.
(2):
(a.) Apprehensive; anxious; suspiciously watchful.
(3):
(a.) Exacting exclusive devotion; intolerant of rivalry.
(4):
(a.) Disposed to suspect rivalry in matters of interest and affection; apprehensive regarding the motives of possible rivals, or the fidelity of friends; distrustful; having morbid fear of rivalry in love or preference given to another; painfully suspicious of the faithfulness of husband, wife, or lover.