Zealous; solicitous; vigilant; anxiously watchful.
- Fearful or wary of being supplanted; apprehensive of losing affection or position.
- Resentful or bitter in rivalry; envious: jealous of the success of others.
- Inclined to suspect rivalry.
- Having to do with or arising from feelings of envy, apprehension, or bitterness: jealous thoughts.
- Vigilant in guarding something: We are jealous of our good name.
- Intolerant of disloyalty or infidelity; autocratic: a jealous God.