Not obscurable; which cannot be obscured.

(rare) Not obfuscatable; which cannot be obfuscated.

That cannot be obeyed.

(UK, historical, informal) A token, similar in appearance to a real farthing, used for marketing and small change during the latter 19th century.

plural of unofficial farthing

The state or quality of being unobjective.

The state or quality of being unobjectionable.

The portion of the U.S. state of Alaska not contained in any of its 19 organized boroughs.

Not obdurate.

Not obligated.