spuriousness

UK: /ˈspjʊərɪəsnɪs/

WordReference Random House Learner's Dictionary of American English © 2025

spu•ri•ous /ˈspyʊriəs/   adj. 

1. not genuine;
   counterfeit.
2. Biology (of arguments) poorly reasoned;
   faulty in reasoning:
   a spurious argument.

spu•ri•ous•ly, adv. 
spu•ri•ous•ness, n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2025

spu•ri•ous  (spyŏŏr′ē əs), adj. 

1. not genuine, authentic, or true;
   not from the claimed, pretended, or proper source;
   counterfeit.
2. Biology (of two or more parts, plants, etc.) having a similar appearance but a different structure.
3. of illegitimate birth;
   bastard.

• Etruscan; see -ous
• Latin spurius bastard, perh.
• 1590–1600

spu′ri•ous•ly, adv. 
spu′ri•ous•ness, n. 
Synonyms

• 1. false, sham, bogus, mock, feigned, phony; meretricious, deceitful.

Antonyms

• 1. genuine.