(ˈ)i(l), ə+ adjective
Etymology: in- (I) + legible
1. : incapable of being read or deciphered : not legible
injured his right hand in football, making his handwriting almost illegible — E.S.Bates
no way of knowing by his illegible face whether he told the truth or not — Jean Stafford
2. : not readable because of language or content
a mediaeval jargon that is now but little less illegible than Coptic — J.B.Cabell
• il·legibly “+ adverb