atheistical
at·heis·ti·cal
adjective
2.
rejecting any belief in gods
Origin
From atheist + -ical. Attested earlier than atheistic.
Related words
Pertaining to
WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). WordNet 2.1 Copyright Princeton University. All rights reserved. Wiktionary content is available under the Creative Commons Attribution-ShareAlike Licence.