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English definition of “serious”

serious

adjective (DETERMINED)    /ˈsɪə.ri.əs/ US  /ˈsɪr.i-/
[after verb] determined to follow a particular plan of action: Is she serious about going to live abroad?Strong-willed [after verb] If two people who have a loving relationship are serious about each other, they intend to stay with each other for a long time and possibly marry: She's had a lot of boyfriends but Simon's the only one she's been serious about.Loving and in love
(Definition of serious adjective (DETERMINED) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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