óreglulegar

Óreglulegar is the Icelandic adjective meaning irregular, used to describe forms that do not follow the standard rules of a word class. In linguistic usage, the term is most often applied to irregular forms that arise in grammar, such as óreglulegar sagnir (irregular verbs), but can also describe irregular adjectives or nouns with non‑regular inflection.

Icelandic grammar generally uses predictable endings for person, number, tense, case, and degree. Óreglulegar forms deviate from these patterns due to historical sound changes, analogy with other forms, or complete suppletion. Typical irregularities include stem changes between present and past tense, vowel alternations, and past participle forms that come from a different root than the present form.

Dictionaries and grammars often list óreglulegar paradigms separately, providing irregular conjugations or declensions for learners and researchers. Irregularity is a common feature in many languages and is frequently tied to high frequency or older layers of the language. The study of óreglulegar forms helps explain how languages change over time and how speakers maintain intelligibility despite deviations from rules.

In computational linguistics and language technology, irregulars require special handling in parsers, morphological analyzers, and text generators. Resources such as lexicons may include flags identifying irregular forms to support accurate processing. See also irregular verbs in Icelandic and the adjective form óreglulegur.