a-, an- +

A loss of the ability to express oneself with signs or gestures.

Partial or total loss or lack of memory; the inability to recall past experiences; lacking memory.

1. Neither moral nor immoral.
2. Not concerned with or amenable to moral judgments; not caring about good behavior or morals; lacking moral principles.

Without shape or form.

1. Having no definite form; shapeless, formless; such as, amorphous clouds.
2. Not belonging to a particular type or pattern.
3. Of no particular kind or character; indeterminate; having no pattern or structure; unorganized: "He has an amorphous style; as well as, an amorphous personality."
4. In petrology, a mineral occurring in a mass, as without stratification, form, or crystalline structure.
5. In chemistry, not crystalline.
6. In biology, having structural components that are not clearly differentiated, as the nuclear material in certain bacteria.

Without life or animation; dejected, as if dead; utterly cast down.

The inability to produce or comprehend music or musical sounds. From Greek amousia (through New Latin), a state of being without the Muses, especially song.

Absence of muscle sensations.

Deficient formation of muscle tissue and deficient muscle growth.

Generalized absence of muscle tone, usually associated with flabby musculature and an increased range of passive movement at joints.

Lacking muscle nourishment.

Lacking muscular tissue or muscular strength.

The absence of the normal secretion of mucus.

Without normal acidity.

Total deafness; without the ability to hear.