irregular

pronunciation

How to pronounce irregular in British English: UK [ɪˈreɡjələ(r)]word uk audio image

How to pronounce irregular in American English: US [ɪˈreɡjələr] word us audio image

  • Noun:
    a member of an irregular armed force that fights a stronger force by sabotage and harassment
    merchandise that has imperfections; usually sold at a reduced price without the brand name
  • Adjective:
    contrary to rule or accepted order or general practice
    (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement
    not occurring at expected times
    used of the military; not belonging to or engaged in by regular army forces
    deviating from what is usual or common or to be expected; often somewhat odd or strange
    lacking continuity or regularity
    of a surface; not level or flat
    used of independent armed resistance forces
    independent in behavior or thought

Word Origin

irregular (adj.)
late 14c., "not in conformity with Church rules," from Old French irreguler (13c., Modern French irrégulier), from Medieval Latin irregularis, from assimilated form of in- "not, opposite of" (see in- (1)) + Latin regularis (see regular (adj.)). General sense is from late 15c.
irregular (n.)
"a soldier not of the regular army," 1747, from irregular (adj.).

Antonym

adj.

regular

Example

1. Apparently newborns can sometimes have problems with irregular breathing .
2. Irregular surfaces show up brightly and smooth areas are dark .
3. Others are irregular fragments of such planetoids brought about by collisions .
4. If the shape is irregular , the shadow should follow its outline .
5. Irregular stripes would let potential mates know that someone was not up to snuff .

more: >How to Use "irregular" with Example Sentences