• (n.) State or quality of being jealous.
Jeal'ous·ness noun State or quality of being jealous. 
jealousness, jealously 1. Feeling bitter and unhappy because of another's advantages, possessions, or luck. 2. Feeling suspicious about a rival's or competitor's influence, especially in regard to a loved one. 3. Possessively watchful of something: 'He keeps a jealous watch on his research.' 4. Demanding exclusive loyalty or adherence; now consi...