音标：[i'regjulә]
n. 不规则物, 不合规格之物
a. 不规则的, 不整齐的, 不合法的
【化】 不规则的
【医】 不齐的, 不规则的
【经】 不规则的, 非正式的
在线英汉词典

irregular的短语、例句：

irregular adj ~ (in sth) 1 not regular in shape, arrangement, etc; uneven （形状）不规则的; （安排）无规律的; 不平坦的
a coast with an irregular outline, eg with many bays, inlets, etc 曲折的海岸线（如有很多的海湾等）. 2 not happening, coming, going, etc regularly; varying or unequal （发生、 来、 去等）无规律的; 变化的; 不均等的
an irregular pulse 不均匀的脉搏
occur at irregular intervals 不定期发生
be irregular in attending class 听课次数不定. 3 contrary to the rules or to what is normal or established 不规则的; 不合常规的; 非正规的
an irregular practice, situation 不合常规的做法、 情况
keep irregular hours, eg get up and go to bed at unusual times 不守常时（如不於正常时间起床和入睡）
His behaviour is highly irregular. 他的行为很不规矩. 4 (grammar) not inflected in the usual way 不规则（变化）的
`Child´ has an irregular plural, ie `children´. Child一词的复数形式不规则, 即children.
irregular verbs 不规则动词. =>App 2 见附录2. 5 (of troops) not belonging to the regular armed forces （指部队）非正规的. irregular, n (usu pl 通常作复数) member of an irregular military force 非正规军成员.