Irregular

//ɪˈɹɛɡ.jʊ.lə// adj, noun

Definitions

Adjective
  1. 1
    Nonstandard; not conforming to rules or expectations.

    "‘ “It would be most irregular Grandpa!” says Miss Cecily frowning and tapping her foot. “Well, we’re a pretty irregular family so that’s neither here nor there,” says the old man, impish like. [...] ’"

  2. 2
    Rough (of a surface).
  3. 3
    Without symmetry, regularity, or uniformity.

    "The hovel stood in the centre of what had once been a vegetable garden, but was now a patch of rank weeds. Surrounding this, almost like a zareba, was an irregular ring of gorse and brambles, an unclaimed vestige of the original common."

  4. 4
    Not regular; having sides that are not equal or angles that are not equal.
  5. 5
    Whose faces are not all regular polygons (or are not equally inclined to each other).
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  1. 6
    Not following the regular or expected patterns of inflection in a given language.

    ""Calves", "cacti", and "children" are irregular plurals."

Adjective
  1. 1
    not occurring at a regular rate or fixed intervals wordnet
  2. 2
    independent in behavior or thought wordnet
  3. 3
    (of a surface or shape); not level or flat or symmetrical wordnet
  4. 4
    lacking continuity or regularity wordnet
  5. 5
    deviating from normal expectations; somewhat odd, strange, or abnormal wordnet
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  1. 6
    failing to meet a standard of manufacture due to an imperfection wordnet
  2. 7
    contrary to rule or accepted order or general practice wordnet
  3. 8
    (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement wordnet
  4. 9
    (used of the military) not belonging to or engaged in by regular army forces wordnet
Noun
  1. 1
    A soldier who is not a member of an official military force and who may not use regular army tactics.
  2. 2
    merchandise that has imperfections; usually sold at a reduced price without the brand name wordnet
  3. 3
    One who does not regularly attend a venue.

    "There's one neighborhood tavern where the regulars and irregulars go after a hard day to unlax and rewind, throw back a few, and just hang out - you know the one."

  4. 4
    a member of an irregular armed force that fights a stronger force by sabotage and harassment wordnet

Etymology

Etymology 1

From Middle English irreguler, from Old French irreguler, from Medieval Latin or Late Latin irrēgulāris, from in- + regularis, equivalent to ir- + regular.

Etymology 2

From Middle English irreguler, from Old French irreguler, from Medieval Latin or Late Latin irrēgulāris, from in- + regularis, equivalent to ir- + regular.

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