Merriam-Webster Logo
SINCE 1828
Menu
dictionary thesaurus

adventitiousness

noun
ad·​ven·​ti·​tious·​ness | \ ˌad-vən-ˈti-sh(ē-)əs-nəs, -ˌven-\
plural -es

Definition of adventitiousness

: the quality or state of being adventitious

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 adventitiousness

1794, in the meaning defined above

Keep scrolling for more

Learn More about adventitiousness

Statistics for adventitiousness

Look-up Popularity

Time Traveler for adventitiousness

The first known use of adventitiousness was in 1794

See more words from the same year

Comments on adventitiousness

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

Show Comments  Hide Comments 

WORD OF THE DAY

demeanor

Listen to the pronounciation of demeanor

behavior toward others

Get Word of the Day daily email!

Test Your Vocabulary

Words for Summer: A Quiz

  • a closeup of a sunflower
  • Which of the following words means “of or relating to summer”?
Spell It

Can you spell these 10 commonly misspelled words?

TAKE THE QUIZ
Add Diction

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