irregular
//ɪˈrɛɡjʊlə//
Adjective
irregularCanonical form
more irregularComparative
most irregularSuperlative
1
Not even or balanced in shape or arrangement; uneven or asymmetrical.
The old house had irregular windows of different sizes.
2
Not occurring at expected times or following a predictable pattern.
She has irregular working hours, so it's hard to make plans with her.
3
Not conforming to established rules, standards, or conventions.
The committee rejected the proposal due to irregular procedures.
4
(Grammar) Not following the normal rules of inflection.
"Go" is an irregular verb because its past tense is "went."
Synonym
Noun
1
A soldier who is not a member of a regular army or organized military force.
The irregulars fought alongside the regular army during the conflict.