There are 8 15-letter words that end with 'ulated'.
| circumambulated | discombobulated | 
| hyperstimulated | nonencapsulated | 
| nonmatriculated | overarticulated | 
| superstimulated | thermoregulated | 
Note: These 8 15-letter words that end with 'ulated' are found from the USA & Canada version of the tournament Scrabble word list.