We found one dictionary that defines the word a poor third:

General (1 matching dictionary)

1. a poor third: Merriam-Webster

▸ Words similar to a poor third ▸ Usage examples for a poor third ▸ Idioms related to a poor third ▸ Wikipedia articles (New!) ▸ Words that often appear near a poor third ▸ Rhymes of a poor third ▸ Invented words related to a poor third