(s)ill, inauspicious, ominouspresaging ill fortune“ill omens”, “ill predictions”, “my words with inauspicious thunderings shook heaven” (P.B.Shelley), “a dead and ominous silence prevailed”, “a by-election at a time highly unpropitious for the Government”
(r)ill, badly, poorly(`ill' is often used as a combining form) in a poor or improper or unsatisfactory manner; not well“he was ill prepared”, “it ill befits a man to betray old friends”, “the car runs badly”, “he performed badly on the exam”, “the team played poorly”, “ill-fitting clothes”, “an ill-conceived plan”