noun plural but singular or plural in construction
ad·​ver·​sar·​ia | \ ˌad-vər-ˈsa-rē-ə \

Definition of adversaria

1 : commentaries or notes (as on a text or document)
2 : a miscellaneous collection of notes, remarks, or selections : commonplace book

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!

First Known Use of adversaria

1571, in the meaning defined at sense 1

History and Etymology for adversaria

Latin, journal, memorandum, from neuter plural of adversarius turned toward

Learn More About adversaria

Time Traveler for adversaria

Time Traveler

The first known use of adversaria was in 1571

See more words from the same year

Dictionary Entries Near adversaria

ad verrecundiam



See More Nearby Entries 

Statistics for adversaria

Cite this Entry

“Adversaria.” Dictionary, Merriam-Webster, Accessed 19 May. 2022.

Style: MLA
MLACheck Mark Icon ChicagoCheck Mark Icon APACheck Mark Icon Merriam-WebsterCheck Mark Icon


Test Your Vocabulary

Which Word Does Not Belong?

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
Spell It

Can you spell these 10 commonly misspelled words?

Universal Daily Crossword

A daily challenge for crossword fanatics.

Love words? Need even more definitions?

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