Of hair, etc.: carefully combed, neatly styled. Of a person: having carefully combed or neatly styled hair; (more generally) of clean and tidy appearance. Also in extended use, especially of a garden, park, etc.: diligently tended or cared for; tidy.
Origin
Middle English. From well + kempt.
Definition of well-kempt in US English:
well-kempt
adjectiveˌwɛlˈkɛm(p)t
Of hair, etc.: carefully combed, neatly styled. Of a person: having carefully combed or neatly styled hair; (more generally) of clean and tidy appearance. Also in extended use, especially of a garden, park, etc.: diligently tended or cared for; tidy.