Definition Of irregular
(of a verb or other word) having inflections that do not conform to the usual rules.
a member of an irregular military force.
The Filipino operational center of gravity was the ability to sustain its force of 100,000 irregulars in the field.
an imperfect piece of merchandise sold at a reduced price.
contrary to the rules or to that which is normal or established.
they were questioned about their involvement in irregular financial dealings
not even or balanced in shape or arrangement.
her features were too irregular
Example Of irregular
A better term might be irregular warfare, war against enemies unable or unwilling to field professional armies.
After fingering about a dozen ties I choose a grey one with small irregular spots arranged in diagonal rows.
an irregular heartbeat
Apparently such procedural irregularities, including violations of long-standing court rules, are not so irregular .
As the theatre of war moved south, so did the smallpox, primarily affecting civilians, camp followers, and irregular troops in both armies.