from The American Heritage® Dictionary of the English Language, 4th Edition
- adj. Not subject to challenge or objection: an irrecusable premise.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. That cannot be challenged or objected to
from the GNU version of the Collaborative International Dictionary of English
- adj. Not liable to exception or rejection.
from The Century Dictionary and Cyclopedia
- Not recusable; not to be rejected or set aside.
French irrécusable, from Late Latin irrecūsābilis : Latin in-, not; see in-1 + recūsābilis, deserving of rejection (from Latin recūsāre, to refuse; see recuse).(American Heritage® Dictionary of the English Language, Fourth Edition)
ir- + recusable (Wiktionary)