We can add -ful or -less to some nouns to form adjectives. The suffix -ful means “full of”. The suffix -less means “without”.
| Noun | Adjective (with -ful) | Adjective (with -less) |
|---|---|---|
| care | careful | careless |
| help | helpful | helpless |
| use | useful | useless |
*Not all words have both -ful and -less as suffices [ F ]noiseful [ T ]noiseless