We found 2 dictionaries that define the word on the off-chance:

General (1 matching dictionary)

1. on the off-chance, on the off-chance: Collins English Dictionary

Miscellaneous (1 matching dictionary)

2. on the off-chance: Idioms

▸ Words similar to on the off-chance ▸ Usage examples for on the off-chance ▸ Idioms related to on the off-chance ▸ Wikipedia articles (New!) ▸ Words that often appear near on the off-chance ▸ Rhymes of on the off-chance ▸ Invented words related to on the off-chance