Open English Wordnet
Adjectives
(s)ailing, indisposed, peaked, poorly, sickly, unwell, under the weather, seedysomewhat ill or prone to illness“my poor ailing grandmother”, “feeling a bit indisposed today”, “you look a little peaked”, “feeling poorly”, “a sickly child”, “is unwell and can't come to work”
(s)antipathetic, antipathetical, averse, indisposed, loath, loth(usually followed by `to') strongly opposed“antipathetic to new ideas”, “averse to taking risks”, “loath to go on such short notice”, “clearly indisposed to grant their request”