There are 7 12-letter words that start with 'unw'.
| unwarinesses | unwashedness | unwaveringly |
| unwieldiness | unwontedness | unworldliest |
| unworthiness | ||
Note: These 7 12-letter words that start with 'unw' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with unwi, unwo, unwa, unwe, unwr, unwh.
5-letter words start with 'unw' (4)