Lacking consistency or regularity in quality or performance
They are now greatly damaged by patchy repaintings.
A ringworm infection also causes the type of patchy hair loss you describe, so this is another avenue for your vet to investigate.
The jury is still out on that one because normally the skin would have patchy spots and Jackson's is smooth.
Children with this condition usually have patchy hair loss with some broken hairs visible just above the surface of the scalp.
The hair loss associated with trichotillomania is patchy and is characterized by broken hairs of varying length.