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: If you find the mirror of the heart dull, the rust has not been cleared from its face.
Dumb
Part of speech: adjective
Definition: Unable to speak; lacking power of speech.Of or pertaining to something, especially a person, that is extremely stupid.Pointless, foolish, lacking intellectual content or value.
Part of speech: verb
Definition: To silence.To make stupid.To represent as stupid.To reduce the intellectual demands of.
Example sentence: Life is very, very short, and you can choose to live it how you want. You can choose to dumb yourself down and not express yourself just so you can fit in, just so people won't dislike you.