contrary to rules, to what is normal and established
random, variable
Cases of word usage
1) (of the sea) moving in short, irregular waves (choppy)
2) an irregular or unsteady movement or appearance (flicker)
3) a weak, irregular light; a small, irregular sign (glimmer)
4) (to produce) a bright, irregular light (glister)
5) (with clothes) badly torn or in rags; having rough or irregular edges or outlines or surfaces (ragged)
6) irregular fold or crease (especially in cloth) (ruck)
7) to grow, spread, in an irregular or untidy manner; to be (far) behind a group while moving forward (straggle)
8) in good order; neat and tidy; to make (something) neat and tidy, especially by taking or cutting away uneven, irregular or unwanted parts; to set (the sails of a boat) to suit the wind (trim)
9) the state of irregular or confused movement, especially of air (turbulence)
10) uneven, irregular (wrinkly)