Dumb vs. Ditzy

Dumbadjective

(dated) Unable to speak; lacking power of speech (kept in "deaf, dumb, and blind").

Dumbadjective

(dated) Silent; unaccompanied by words.

Dumbadjective

extremely stupid.

Dumbadjective

(figuratively) Pointless, foolish, lacking intellectual content or value.

Dumbadjective

Lacking brightness or clearness, as a colour.

Dumbverb

To silence.

Dumbverb

(transitive) To make stupid.

Dumbverb

(transitive) To represent as stupid.

Dumbverb

(transitive) To reduce the intellectual demands of.

Dumbadjective

Destitute of the power of speech; unable; to utter articulate sounds; as, the dumb brutes.

Dumbadjective

Not willing to speak; mute; silent; not speaking; not accompanied by words; as, dumb show.

Dumbadjective

Lacking brightness or clearness, as a color.

Dumbverb

To put to silence.

Dumbadjective

slow to learn or understand; lacking intellectual acuity;

Dumbadjective

unable to speak temporarily;

Dumbadjective

lacking the power of human speech;

Dumbadjective

unable to speak because of hereditary deafness

Ditzyadjective

(informal) Silly or scatterbrained, usually of a woman.

Ditzyadjective

silly or scatterbrained