There are 11 words that end with 'icient'.
| deficient | efficient | 
| proficient | sufficient | 
| coefficient | inefficient | 
| insufficient | hyperefficient | 
| superefficient | ultraefficient | 
| immunodeficient | |
Note: These 11 words that end with 'icient' are found from the USA & Canada version of the tournament Scrabble word list.