Classify the following words according to the part-of-speech meaning of their affixational morphemes.

Model: darkless
The affix -less indicates that the derived word is an adjective

curious
handsome
revolution
breakage
eatable
neighbourhood
obligatory
weaken
sympathy
befriend
extremely
inflectional
usage
productive
arrival
actress
editor
eastward
identify
ridiculous
suitability
analyze