- Apt or likely to change.
- Liable to slip, err, fall, or apostatize.
- (chemistry, of a compound or bond) Kinetically unstable; rapidly cleaved (and possibly reformed).
"Water ligands typically bind metals in a labile fashion and are rapidly interchanged in aqueous solution."
"Certain drugs can be conjugated to polymer molecules with a linkage that is labile at low pH to effect controlled release in a cellular endosome."