Extended test driveGet behind the wheel of a smart. Shop online nowOrder a forfour or fortwo online today. smart fortwo Back smart fortwo coupÃ© smart fortwo >> For more fun in the city. from Â£11,370.00 Find out more. smart BRABUS fortwo smart BRABUS fortwo >> The urban sports cars. from Â£16,585.00 Find out more.
Quick Answer. In a psychological context, labile mood refers to a mood state in which a person experiences wild, uncontrolled mood swings. Labile mood is also known as labile affect, emotional dysregulation and pseudobulbar affect.
Definition of labile. 1  1 : readily or continually undergoing chemical, physical, or biological change or breakdown : unstable a labile mineral. 2  2 : readily open to change has so labile a face that some of her scenes â¦ rock with emotion â Manny Farber.