15-Letter Words Start with 'obs'

There are 7 15-letter words that start with 'obs'.

observabilities	observationally
obsessivenesses	obstinatenesses
obstructionisms	obstructionists
obstructiveness

Note: These 7 15-letter words that start with 'obs' are found from the USA & Canada version of the tournament Scrabble word list.

Also see words start with obse, obst, obsc, obso, obsi.

6-letter words start with 'obs' (1)
7-letter words start with 'obs' (4)
8-letter words start with 'obs' (14)
9-letter words start with 'obs' (27)
10-letter words start with 'obs' (18)
11-letter words start with 'obs' (23)
12-letter words start with 'obs' (11)
13-letter words start with 'obs' (13)
14-letter words start with 'obs' (5)
15-letter words start with 'obs' (7)