"causing disgust, offensive to the taste physically, morally, or aesthetically," 1754, present-participle adjective from disgust (v.). Related: Disgustingly. Disgustful "causing disgust" (1610s) was "Very common in 17-18th c." [OED].
a disgusting smell
disgraceful
disgruntle
disgruntled
disguise
disgust
disgusting
dish
dishabille
disharmony
dish-cloth
dishearten