15-Letter Words Start with 'ef'

There are 4 15-letter words that start with 'ef'.

effectivenesses	effectualnesses
efficaciousness	effortfulnesses

Note: These 4 15-letter words that start with 'ef' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words start with eff, eft, efs.

3-letter words start with 'ef' (3)
4-letter words start with 'ef' (2)
6-letter words start with 'ef' (7)
7-letter words start with 'ef' (11)
8-letter words start with 'ef' (20)
9-letter words start with 'ef' (16)
10-letter words start with 'ef' (20)
11-letter words start with 'ef' (15)
12-letter words start with 'ef' (14)
13-letter words start with 'ef' (8)
14-letter words start with 'ef' (6)
15-letter words start with 'ef' (4)