Unaccountable a. : Not accountable or responsible; free from control.

Unaccountable a. : Not to be accounted for; inexplicable; not consonant with reason or rule; strange; mysterious.

Example:
Are there laws against requiring employees to reimburse Unaccountable money?

Taxonomy
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Defination from the web:
unaccountable from the Merriam-Webster Online Dictionary with audio pronunciations, thesaurus, Word of the Day, and word games. ... Learn more about "unaccountable" Learn more about "unaccountable" and related topics at Britannica.com. Pronunciation Symbols. Share this ...