There are 18 10-letter words that start with 'ina'.
| inaccuracy | inaccurate | inactivate | 
| inactively | inactivity | inadequacy | 
| inadequate | inamoratas | inamoratos | 
| inanitions | inapparent | inapposite | 
| inaptitude | inarguable | inarguably | 
| inartistic | inaugurals | inaugurate | 
Note: These 18 10-letter words that start with 'ina' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with inap, inac, inar, inau, inad, inan, inal, inat, inam, inab.
5-letter words start with 'ina' (3)