allowable

adj

1. Appropriate; acceptable.
2. Intellectually admissible; valid; probable.
3. Able to be added or deducted in consideration of something.
4. Permissible; tolerable; legitimate.

   “And first, although there were more things in nature then words which did expresse them, yet even in these mute and silent discourses, to expresse complexed significations, they took a liberty to compound and piece together creatures of allowable formes unto mixtures inexistent […]”

   “New HISA regulations, implemented last month, include strict rules about withdrawal times and allowable medication levels on race day.”

5. (obsolete)Praiseworthy.

noun

1. A permitted amount or activity.