See also: irregulär
- nonstandard; not conforming to rules or expectations
- (of a surface) rough
- without symmetry, regularity, or uniformity
- 2013 January 1, Paul Bartel, Ashli Moore, “Avian Migration: The Ultimate Red-Eye Flight”, in American Scientist, volume 101, number 1, page 47–48:
- Many of these classic methods are still used, with some modern improvements. For example, with the aid of special microphones and automated sound detection software, ornithologists recently reported […] that pine siskins (Spinus pinus) undergo an irregular, nomadic type of nocturnal migration.
- 2013 July 19, Ian Sample, “Irregular bedtimes may affect children's brains”, in The Guardian Weekly, volume 189, number 6, page 34:
- Irregular bedtimes may disrupt healthy brain development in young children, according to a study of intelligence and sleeping habits. ¶ Going to bed at a different time each night affected girls more than boys, but both fared worse on mental tasks than children who had a set bedtime, researchers found.
- 2019 October, Tony Miles and Philip Sherratt, “EMR kicks off new era”, in Modern Railways, page 58:
- The improvements will be most keenly felt across Lincolnshire, where current irregular service patterns are more a function of operational convenience than passenger demand.
- (geometry, of a polygon) not regular; having sides that are not equal or angles that are not equal
- (geometry, of a polyhedron) whose faces are not all regular polygons (or are not equally inclined to each other)
- (grammar, of a word) not following the regular or expected patterns of inflection in a given language
- "Calves", "cacti", and "children" are irregular plurals.
- I hate learning all the irregular conjugations in French.
in grammar, applied to verbs
irregular (plural irregulars)
- a soldier who is not a member of an official military force and, often, does not follow regular army tactics
- one who does not regularly attend a venue
- 2015, Brian Cook, Hands Across The Sea, page 190:
- 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.
irregular (masculine and feminine plural irregulars)
irregular m or f (plural irregulares)
- “irregular” in Dicionário Priberam da Língua Portuguesa.
irregular (plural irregulares)
- irregular, uneven, erratic, haphazard
- patchy, spotty, jagged, ragged
- (grammar) (of a verb etc.) irregular
- Antonym: regular