jealous

adjective (UNHAPPY)

/ˈdʒel.əs/

Definition

B1 upset and angry because someone that you love seems interested in another person: a jealous husband/wife Anna says she feels jealous every time another woman looks at her boyfriend.Envy and jealousy B2 unhappy and angry because someone has something that you want: He had always been very jealous of his brother's good looks. → Compare envious jealously

/-li/ adverb B2 The exact location of the hotel where the royal couple is staying is a jealously (= carefully) guarded secret. She eyed Gwen's engagement ring jealously.Cautious and vigilantPaying attention and being carefulEnvy and jealousy

(Definition of jealous adjective (UNHAPPY) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)