We found 7 dictionaries that define the word on an irregular basis:

General (7 matching dictionaries)

1. on an irregular basis: Vocabulary.com
2. on an irregular basis: Wiktionary
3. on an irregular basis: Dictionary.com
4. on an irregular basis: Rhymezone
5. on an irregular basis: FreeDictionary.org
6. on an irregular basis: Mnemonic Dictionary
7. on an irregular basis: TheFreeDictionary.com

Definitions from WordNet (on an irregular basis) ▸ adverb:  in an irregular manner Opposite: regularly, routinely, customarily, usually ▸ Words similar to on an irregular basis ▸ Usage examples for on an irregular basis ▸ Idioms related to on an irregular basis ▸ Wikipedia articles (New!) ▸ Words that often appear near on an irregular basis ▸ Rhymes of on an irregular basis ▸ Invented words related to on an irregular basis