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”