Synonyms for facultative

Adjective

1. facultative

usage: of or relating to the mental faculties

2. facultative (vs. obligate)

usage: able to exist under more than one set of conditions; "a facultative parasite can exist as a parasite or a saprophyte"

3. facultative, enabling (vs. disabling)

usage: granting a privilege or permission or power to do or not do something; "a facultative enactment"

4. facultative, optional (vs. obligatory)

usage: not compulsory; "facultative courses in the sciences"