This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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adj. Lacking ears.

adj. Without ears; hence, deaf or unwilling to hear.

Deprived of ears; having the ears cropped.

Destitute of ears; not eared; exauriculate: as, the earless seals.

Specifically, in ornithology, having no plumicorns: as, the earless owls.

Not giving ear; not inclined to hear or listen.

adj. lacking external ears

"That's difficult to do without a living mosasaur, especially since there's a problematic critter called the earless monitor lizard"

earless marmot   

fearless   

cold-looking    meter-tall    Lions    maundering    many-legged    mad-scientist    hid    follow-the-sun    talk    pulseless