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factitious vs. fictitious

factitious

[fak-tish-uhs] / fækˈtɪʃ əs /

adjective

not spontaneous or natural; artificial; contrived.

factitious laughter; factitious enthusiasm.
made; manufactured.

a decoration of factitious flowers and leaves.

fictitious

[fik-tish-uhs] / fɪkˈtɪʃ əs /

adjective

created, taken, or assumed for the sake of concealment; not genuine; false.

fictitious names.

Synonyms:

fake, spurious
of, relating to, or consisting of fiction; imaginatively produced or set forth; created by the imagination.

a fictitious hero.

Synonyms:

fictional