Lacking consistency or regularity in quality or performance

• variable

  1. (Mathematics) Having no fixed quantitative value.
  2. Designating or involving an interest rate, as on a mortgage loan, that varies over time according to some predetermined formula
  3. Likely to change or vary; subject to variation; changeable.

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  1. (Mathematics) Having no fixed quantitative value.
  2. Designating or involving an interest rate, as on a mortgage loan, that varies over time according to some predetermined formula
  3. Likely to change or vary; subject to variation; changeable.

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• unsteady

  1. Erratic in habits, purpose, or behavior
  2. Not firm or stable; shaky
  3. Not even or regular; wavering:

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  1. Erratic in habits, purpose, or behavior
  2. Not firm or stable; shaky
  3. Not even or regular; wavering:

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• uneven

  1. Not level, smooth, or flat; rough; irregular
  2. Not uniform; varying; fluctuating
  3. Having ill-matched opponents:

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  1. Not level, smooth, or flat; rough; irregular
  2. Not uniform; varying; fluctuating
  3. Having ill-matched opponents:

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• patchy

  1. Giving the effect of patches; not consistent or uniform in quality; irregular
  2. Full of, or covered with, patches; abounding in patches.
  3. Not constant or continuous; intermittent or uneven.

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  1. Giving the effect of patches; not consistent or uniform in quality; irregular
  2. Full of, or covered with, patches; abounding in patches.
  3. Not constant or continuous; intermittent or uneven.

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• inconsistent

  1. (Mathematics) Not solvable for the unknowns by the same set of values. Used of two or more equations or inequalities.
  2. Displaying or marked by a lack of consistency, especially:
  3. Lacking in correct logical relation; contradictory:

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  1. (Mathematics) Not solvable for the unknowns by the same set of values. Used of two or more equations or inequalities.
  2. Displaying or marked by a lack of consistency, especially:
  3. Lacking in correct logical relation; contradictory:

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• erratic

  1. (Geol.) Designating a boulder or rock formation transported some distance from its original source, as by a glacier
  2. Lacking consistency, regularity, or uniformity:
  3. Having no fixed course or purpose; irregular; random; wandering

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  1. (Geol.) Designating a boulder or rock formation transported some distance from its original source, as by a glacier
  2. Lacking consistency, regularity, or uniformity:
  3. Having no fixed course or purpose; irregular; random; wandering

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