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unsatisfied

adj
1: not having been satisfied [syn: unsated, unsatiated]

dissatisfied

adj.
Feeling or exhibiting a lack of contentment or satisfaction.

also see:

dis·sat·is·fy

tr.v. dis·sat·is·fied, dis·sat·is·fy·ing, dis·sat·is·fies
To fail to satisfy; disappoint.