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Erratic vs Undefined - What's the difference?

erratic | undefined |

As adjectives the difference between erratic and undefined

is that erratic is unsteady, random; prone to unexpected changes; not consistent while undefined is lacking a definition or value.

As a noun erratic

is (geology) a rock moved from one location to another, usually by a glacier.

erratic

English

Alternative forms

* erratick, erraticke, erratique (obsolete)

Adjective

(en adjective)
  • unsteady, random; prone to unexpected changes; not consistent
    • Henry has been getting erratic scores on his tests: 40% last week, but 98% this week.
  • Deviating from the common course in opinion or conduct; eccentric; odd.
    • erratic conduct

    Derived terms

    * erratically

    Antonyms

    * consistent

    Noun

    (en noun)
  • (geology) A rock moved from one location to another, usually by a glacier.
  • * 2003 , (Bill Bryson), A Short History of Nearly Everything , BCA 2003, p. 372:
    • The term for a displaced boulder is an erratic , but in the nineteenth century the expression seemed to apply more often to the theories than to the rocks.
  • Anything that has erratic characteristics.

    • Anagrams

    *

    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