As adjectives the difference between unsatisfied and dissatisfied
is that unsatisfied is not satisfied, especially with the quantity of something while dissatisfied is feeling or displaying disappointment or a lack of contentment.
As a verb dissatisfied is
past tense of dissatisfy.
dissatisfied
English
Adjective
(
en adjective)
Feeling or displaying disappointment or a lack of contentment
Not satisfied (with the quality of something)
Verb
(head)
(dissatisfy)