the GNU version of the Collaborative International Dictionary of English
adj. Situated below the poles.
The Century Dictionary and Cyclopedia
Under or below the poles of the earth in latitude; adjacent to the poles.
Beneath the pole of the heavens, as a star at its lowest culmination.
Word Usage
"I weeded my library’s copy of that haunting clowns cover for myself, and I will definitely weed this frigid Hawaiian book (must have been taken in subpolar Hawaii) for my own Awful Library Books personal collection."