| 1. |
(satellite adjective) not compulsory; "facultative courses in the sciences" |
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| 2. |
(satellite adjective) granting a privilege or permission or power to do or not do something; "a facultative enactment" |
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| 3. |
(adjective) (biology) able to exist under more than one set of conditions; "a facultative parasite can exist as a parasite or a saprophyte" |
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Antonyms: obligate |
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| 4. |
(adjective) of or relating to the mental faculties |
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