Inactive
Part of speech: adjective
Definition: Not active, temporarily or permanently Not functioning or operating; broken down Retired from duty or service Relatively inert Showing no optical activity in polarized light
Dull
Part of speech: adjective
Definition: Lacking the ability to cut easily; not sharp.Boring; not exciting or interesting.Not shiny; having a matte finish or no particular luster.Not bright or intelligent; stupid; slow of understanding.
Part of speech: verb
Definition: To render dull; to remove or blunt an edge or something that was sharp.To soften, moderate or blunt.To lose a sharp edge; to become dull.
Example sentence: I have tried lately to read Shakespeare, and found it so intolerably dull that it nauseated me.