lacking uniformity or symmetry; uneven in shape, position, arrangement, etc

not occurring at expected or equal intervals

differing from the normal or accepted practice or routine

not according to established standards of behaviour; unconventional

(of the formation, inflections, or derivations of a word) not following the usual pattern of formation in a language, as English plurals ending other than in -s or -es

of or relating to guerrillas or volunteers not belonging to regular forces

(of flowers) having any of their parts, esp petals, differing in size, shape, etc; asymmetric

(of merchandise) not up to the manufacturer's standards or specifications; flawed; imperfect

a soldier not in a regular army

imperfect or flawed merchandise