lacking kindness; "a thoughtless and unkind remark"; "the unkindest cut of all"
4
dangerous
causing fear or anxiety by threatening great harm; "a dangerous operation"; "a grave situation"; "a grave illness"; "grievous bodily harm"; "a serious wound"; "a serious turn of events"; "a severe case of pneumonia"
2
cruel
lacking or showing kindness or compassion or mercy
2
unfriendly
not friendly; "an unfriendly act of aggression"; "an inimical critic"
