Definitions of irregular

  1. merchandise that has imperfections; usually sold at a reduced price without the brand name
  2. One who is not regular; especially, a soldier not in regular service.
  3. A soldier not in regular service.
  4. A soldier not in regular service; one not following any fixed rule; in bot, a flower in which the parts of any of the verticils differ in size.
  5. used of the military; not belonging to or engaged in by regular army forces; " irregular troops"; " irregular warfare"
  6. of a surface; not level or flat; " walking was difficult on the irregular cobblestoned surface"
  7. contrary to rule or accepted order or general practice; " irregular hiring practices"
  8. ( of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement
  9. Not regular; not conforming to a law, method, or usage recognized as the general rule; not according to common form; not conformable to nature, to the rules of moral rectitude, or to established principles; not normal; unnatural; immethodical; unsymmetrical; erratic; no straight; not uniform; as, an irregular line; an irregular figure; an irregular verse; an irregular physician; an irregular proceeding; irregular motion; irregular conduct, etc. Cf. Regular.
  10. Not straight; not symmetrical; not according to established method, standards, customs, or law; abnormal; not methodical.
  11. Not according to rule: unnatural: unsystematic: vicious: ( gram.) departing from the ordinary rules in its inflection: variable: not symmetrical.
  12. Not according to rule; unsystematic; variable.
  13. Not regular; not according to common form or rules; not according to established principles or customs; not comformable to nature, or the usual operation of natural laws; not according to the rules of art; not in conformity to law, human or divine; deviating from the rules of moral rectitude; not straight; not uniform; deviating from the common rules in inflection; not in regular service; said of a cadence which does not end upon the tonic chord.
  14. Not according to usual forms or rules; not according to established principles or customs; not in conformity to law; wanting symmetry; not regular, as regards mode of life; vicious.