eɪ.ˈtɪp.ɪ.kəl ɡəˈɹɪlə ɪnˈsəːdʒ(ə)nt ɪnˈsəɹdʒənt ɪˈɹɛɡjəlɚ ɪˈɹɛɡjəlɚ ˈmævəɹɪk ˈmævəɹik ˈsɛk.(ə)nd ˈtɛmpəɹəɹi ˈtɛmpəˌɹɛɹi ʌnˈɔɹθədɑks ʌnˈɔːθədɒks not occurring at a regular rate or fixed intervals an irregular heartbeat independent in behavior or thought she led a somewhat irregular private life maverick politicians (of a surface or shape); not level or flat or symmetrical walking was difficult on the irregular cobblestoned surface lacking continuity or regularity an irregular worker employed on a temporary basis deviating from normal expectations; somewhat odd, strange, or abnormal these days large families are atypical atypical clinical findings atypical pneumonia highly irregular behavior failing to meet a standard of manufacture due to an imperfection an irregular pair of jeans contrary to rule or accepted order or general practice irregular hiring practices (of solids) not having clear dimensions that can be measured; volume must be determined with the principle of liquid displacement (used of the military) not belonging to or engaged in by regular army forces irregular troops irregular warfare merchandise that has imperfections; usually sold at a reduced price without the brand name a member of an irregular armed force that fights a stronger force by sabotage and harassment