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Supplementary vs Optional - What's the difference?

supplementary | optional |

As adjectives the difference between supplementary and optional

is that supplementary is additional; added to supply what is wanted while optional is not compulsory; left to personal choice; elective.

supplementary

English

Adjective

(en adjective)
  • Additional; added to supply what is wanted.

    • Related terms

    * presupplementary

    References

    *

    optional

    English

    Adjective

    (-)
  • Not compulsory; left to personal choice; elective.
    • On that beach clothing is entirely optional .

    Antonyms

    * obligatory * mandatory * compulsory

    Related terms

    * option * optionality