There are 16 words that end with 'idest'.
| widest | aridest | snidest |
| acridest | solidest | staidest |
| rapidest | timidest | vividest |
| candidest | horridest | stolidest |
| stupidest | torridest | squalidest |
| splendidest | ||
Note: These 16 words that end with 'idest' are found from the USA & Canada version of the tournament Scrabble word list.