Lability is the opposite of stability. Something is more labile if it is easier to move or change. The term is normally used in science, especially biology and chemistry.
↑Novakovic, Mihajlo; Battistel, Marcos D.; Azurmendi, Hugo F.; Concilio, Maria-Grazia; Freedberg, Darón I.; Frydman, Lucio (2021). "The Incorporation of Labile Protons into Multidimensional NMR Analyses: Glycan Structures Revisited". Journal of the American Chemical Society. 143 (23): 8935–8948. Bibcode:2021JAChS.143.8935N. doi:10.1021/jacs.1c04512. PMID34085814.