There are 16 words that start with 'indul'.
| indult | indulge | indulin | 
| indults | indulged | indulger | 
| indulges | induline | indulins | 
| indulgent | indulgers | indulging | 
| indulines | indulgence | indulgences | 
| indulgently | ||
Note: These 16 words that start with 'indul' are found from the USA & Canada version of the tournament Scrabble word list.