Synonym: abnormal, distorted, erratic, rough, uneven, unnatural. Antonym: regular. Similar words: regular, regularly, at regular intervals, regulate, regulator, regulatory, regulation, triangular. Meaning: [ɪ'regjələ(r) /-gjʊl-] 
n. 1. a member of an irregular armed force that fights a stronger force by sabotage and harassment 2. merchandise that has imperfections; usually sold at a reduced price without the brand name. adj. 1. contrary to rule or accepted order or general practice 2. (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement 3. not occurring at expected times 4. (used of the military) not belonging to or engaged in by regular army forces 5. deviating from normal expectations; somewhat odd, strange, or abnormal 6. lacking continuity or regularity 7. of a surface; not level or flat 8. independent in behavior or thought.
n. 1. a member of an irregular armed force that fights a stronger force by sabotage and harassment 2. merchandise that has imperfections; usually sold at a reduced price without the brand name. adj. 1. contrary to rule or accepted order or general practice 2. (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement 3. not occurring at expected times 4. (used of the military) not belonging to or engaged in by regular army forces 5. deviating from normal expectations; somewhat odd, strange, or abnormal 6. lacking continuity or regularity 7. of a surface; not level or flat 8. independent in behavior or thought. 
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31) Now the rocky, irregular moonscape was all around us.
32) His breath was coming in short irregular gasps.
33) They flew side by side, making large, irregular circles.
34) Index of language points and of irregular verbs.
35) It was highly irregular, but it didn't matter.
36) Put simply, cardiac arrhythmia is an irregular heartbeat.
37) Different alignments were adopted in a very irregular fashion.
38) There was nothing irregular about the loan.sentencedict.com
39) They were accustomed to his irregular hours.
40) The subsistence economy, however, provides security for irregular workers.
41) Some weeks, I work long, irregular hours.
42) To cut a board around a curved or irregular object such as a stone or pipe, use a compass.
43) Parental contact, though irregular,(sentencedict.com) prevented the child from forming an alternative parent-child relationship.
44) King's health Hussein was treated in hospital in Amman on June 11-13 for an irregular heartbeat.
45) Mr Kerr added that none of the companies that had received the irregular payments had been required to repay money.
46) Here there is a local history museum, Entlebucher Heimatmuseum, dealing with the valley; its opening hours are irregular.
47) A particularly interesting feature of the trestle piers was the method used for founding them on irregular river beds.
48) The first is cocoa brown with large irregular white patches.
49) His extraordinary revenue came, in the nature of things, in irregular bursts, mostly concentrated in his first ten years.
50) Most of the surplus land lies in regions of irregular rainfall.
51) He was wearing a dark robe, made darker by constant wear and irregular washings.
52) But the irregular payments for which Stan Flashman's club were punished may only be the tip of the iceberg.
53) Around it, a dwarf cluster of irregular shapes outlined the village that had clung to the church for 800 years.
54) The number of organisms increases and decreases in a highly irregular manner.
55) But employment in the building trade is notoriously irregular, and such artisans alternate self-employment with wage-paid work on the building sites.
56) And the verse is accordingly irregular and gnarled and yet sappy, far more like growing timber than like steel rails.
57) Cruising underwater, you see pale outlines of the irregular sea bottom.
58) More organization may be visible at Corbridge, but the resulting insulae are still very irregular.
59) By fitting one central bar, three-point cramping is possible, catering for irregular shapes, while still providing adequate support.
60) Unless they are boned, sir-loin steaks contain bone pieces of irregular shape that are derived from the hipbone.
More similar words: regular, regularly, at regular intervals, regulate, regulator, regulatory, regulation, triangular, irrelevant, irreverent, irrevocable, irreverence, irrespective of, coagulate, secular, popularity, tabula rasa, particular, spectacular, in particular, particularly, engulfed, barrel, marred, regain, arrest, arrear, region, regime, regard.