irregular /ir-egˈū-lər/

1. Not regular
2. Not conforming to rule or to the ordinary rules
3. Disorderly
4. Uneven
5. Unsymmetrical
6. Variable
7. (of troops) not trained under the authority of a government
8. (of a marriage) not celebrated by a minister after proclamation of banns or of intention to marry

An irregular soldier

irregularity /-larˈi-ti/ noun

1. A rough place or bump on an even surface
2. An instance of action, behaviour, etc not conforming to rules or regulations

irregˈularly adverb

• gasholder
• gasholders
• gasification
• gasifications
• gasified
• gasifier
• gasifiers
• gasifies
• gasiform
• gasify
• gasifying
• gas jar
• gas jars
• gas jet
• gas jets
• gasket
• gaskets
• gaskin
• gaskins
• gas lamp
• gas lamps
• gas lift
• gas lifts
• gaslight
• gaslights