Spelling Lesson 18  
 

List Words

Challenge Words  

1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.

 

 

nontoxic
income
unknown
unusual
involved
unlike
inspector
unless
indeed
nonprofit
invisible
nonsense
incredible
uncomfortable
inconsistent
unfortunately
nonfiction
nonviolent
uncover
informal

 

  21.
22.
23.
24.
25.
inexperienced
unproductive
nonverbal
unsightly
inspiration