Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

Athanasianism

noun
Ath·​a·​na·​sian·​ism
plural -s

Definition of Athanasianism 

: the theological doctrine of Athanasius especially : the doctrine that the Son is of the same substance with the Father —opposed to Arianism

Love words?

You must — there are over 200,000 words in our free online dictionary, but you are looking for one that’s only in the Merriam-Webster Unabridged Dictionary.

Start your free trial today and get unlimited access to America's largest dictionary, with:

  • More than 250,000 words that aren't in our free dictionary
  • Expanded definitions, etymologies, and usage notes
  • Advanced search features
  • Ad free!

Learn More about Athanasianism

Share Athanasianism

Dictionary Entries near Athanasianism

athame

Athanasian

Athanasian Creed

Athanasianism

Athanasius

athanor

athar

Statistics for Athanasianism

Look-up Popularity

Comments on Athanasianism

What made you want to look up Athanasianism? Please tell us where you read or heard it (including the quote, if possible).

Show Comments  Hide Comments 

WORD OF THE DAY

henchman

a trusted follower

Get Word of the Day daily email!

Test Your Vocabulary

Difficult Vocab Quiz

  • the-education-of-achilles-eugne-delacroix
  • Which is a synonym of discomfit?
True or False

Test your knowledge - and maybe learn something along the way.

TAKE THE QUIZ
Citation

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!

Words at Play

Ask the Editors

Word Games