We found one dictionary that defines the word lack thereof:

General (1 matching dictionary)

1. lack thereof: Merriam-Webster

Phrases: or lack thereof, more... ▸ Words similar to lack thereof ▸ Usage examples for lack thereof ▸ Idioms related to lack thereof ▸ Wikipedia articles (New!) ▸ Words that often appear near lack thereof ▸ Rhymes of lack thereof ▸ Invented words related to lack thereof