irregular
/ɪˈɹɛɡjəlɚ/
Dictionary
noun
- 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
adjective
- Nonstandard; not conforming to rules or expectations
- (of a surface) rough
- Without symmetry, regularity, or uniformity
- (of a polygon) not regular; having sides that are not equal or angles that are not equal
- (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."
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