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not following a regular or predictable pattern
not conforming to established rules, patterns, or norms
(grammar) describing a word that is not formed in the usual way
dive into the water bending the body at the waist at a right angle, like a jackknife
(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
failing to meet a standard of manufacture due to an imperfection
lacking continuity or regularity
independent in behavior or thought
(of a surface or shape); not level or flat or symmetrical
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
irregular
regular
