not genuine or authentic; assumed; false: to give a fictitious address of, relating to, or characteristic of fiction; created by the imagination
WordReference Random House Learner's Dictionary of American English © 2026
fic•ti•tious /fɪkˈtɪʃəs/USA pronunciation
adj.
WordReference Random House Unabridged Dictionary of American English © 2026- created, taken, or assumed for concealment;
not genuine;
false:fictitious names. - of, relating to, or made up of fiction:a fictitious heroine.
- fictional usually refers to events that are imaginary or made up:a fictional tale.fictitious more often implies that there was a deliberate effort to mislead or be false:They used fictitious names on their gun permit applications.
fic•ti•tious
(fik tish′əs),USA pronunciation adj.
fic•ti′tious•ly, adv.
fic•ti′tious•ness, n.
- created, taken, or assumed for the sake of concealment;
not genuine;
false:fictitious names. - of, pertaining to, or consisting of fiction;
imaginatively produced or set forth;
created by the imagination:a fictitious hero.
- Latin fictīcius artificial, equivalent. to fict(us) shaped, feigned (see fiction) + -īcius -itious
- 1605–15
fic•ti′tious•ness, n.
- 1.See corresponding entry in Unabridged spurious, fake.
- 2.See corresponding entry in Unabridged fictional.
Collins Concise English Dictionary © HarperCollins Publishers::
'fictitious' also found in these entries (note: many are not synonyms or translations):
-tious
- Coriolis effect
- Coriolis force
- Doe
- Jane Doe
- Joan
- John Doe
- Jukes
- Kallikak
- Kilroy
- Knickerbocker
- Mafia
- Mother Goose
- Murphy's Law
- Richard Roe
- Roe
- Sassoon
- act
- assumed
- characterization
- dry-as-dust
- dummy
- embellish
- embellishment
- embroider
- fable
- fabled
- fabulous
- factoid
- fancy dress
- feigned
- fictitious force
- fictitious person
- fictive
- fine
- furphy
- ghost
- half-fictitious
- invent
- kite
- legend
- myth
- mythical
- mythological
- narrative
- natural
- novel
- phantom
- popularly
- pretended