nonageable

adjective2

1. •
   For which an age cannot be determined.

   • Percentages of age/sex classes are calculated on all Collorhinus elements, including those of juveniles and nonageable specimens. — 2011
2. •
   Not ageable; that does not alter with age.

   • Inhibition by a nonageable phosphinate produces cholinergic toxicity, treatable with atropine and 2-PAM. — 2007