There are 12 words that end with 'utably'.
mutably | immutably | imputably |
refutably | reputably | disputably |
inscrutably | irrefutably | disreputably |
incommutably | incomputably | indisputably |
Note: These 12 words that end with 'utably' are found from the USA & Canada version of the tournament Scrabble word list.