LATIN DICTIONARYLexicon Latīnum
adjective

irrĕcūsābĭlis

Meaning

  1. not to be refused

irrĕcūsābĭlis (inr-), e, adj. 2. inrecusabilis,
I. not to be refused (post class.): occasio, Cod. Just. 3, 1, 13; Hier. Ep. 60, 14. —Hence, adv.: irrĕcūsābĭlĭter, without possibility of refusal, Rustic. c. Aceph. p. 1218.

Quick answers

What does irrĕcūsābĭlis mean in Latin?
irrĕcūsābĭlis, a adjective, means “not to be refused”.