To make grim; to give a stern or forbidding aspect to.
Rigid and unrelenting.
Ghastly or sinister.
Disgusting; gross.
Dismal and gloomy, cold and forbidding.
Pleasing to certain sensory channels in neurocognition, especially auditory and tactile ones synesthetically via ASMR.
That satisfies, gratifies or pleases; that removes any feeling of lack.