0 the quality of not being regular in shape or form, or an example of this:
1 something that is not correct or acceptable:
2 the fact that something does not happen at regular times
3 something that is not according to usual rules or what is expected, and often not acceptable:
The company discovered accounting irregularities going back three to four years.
The elections at the municipal, national assembly, and presidential levels, in spite of some irregularities, were fair and open.
There was a prominent venous pattern over the heart and considerable irregularities of myocardial color.
Modeling the geometry of these irregularities would normally require a drastic increase in mesh resolution and corresponding computation time.
The single-contraction wind tunnel contained three cells due to small mean flow irregularities.
We expect the irregularities to behave as if they were simply convected along lines of force.
First, only long waves are unstable, and disturbances of great wavelength are not often excited by slight irregularities in an experiment.
Furthermore, once formed, the irregularities in the shock profile will not necessarily be damped out as the shock implodes on the sphere centre.
Noise and irregularities are common in many musical instruments.