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Sickness vs Undefined - What's the difference?

sickness | undefined |

As a noun sickness

is the quality or state of being sick or diseased; illness; disease or malady.

As an adjective undefined is

lacking a definition or value.

sickness

English

Noun

(en-noun)
  • The quality or state of being sick or diseased; illness; disease or malady.
    • I do lament the sickness of the king. -
    Trust not too much your now resistless charms; Those, age or sickness soon or late disarms. -.
    Sickness is a dangerous indulgence at my time of life. -.
  • Nausea; qualmishness; as, sickness of stomach.

    • Derived terms

    *

    Synonyms

    * nausea * disease * illness * infirmity * malady

    Hyponyms

    * car sickness * homesickness * motion sickness

    References

    *

    undefined

    English

    Adjective

    (wikipedia undefined) (-)
  • Lacking a definition or value.
  • (mathematics, computing) That does not have a meaning and is thus not assigned an interpretation.
    • The result of division by zero is undefined .

    Antonyms

    * defined