Synonyms of the word

impotent

• adj. Lacking physical strength or vigor; weak.
• adj. Lacking in power, as to act effectively; helpless.
• adj. Incapable of sexual intercourse, often because of an inability to achieve or sustain an erection.
• adj. (of a male) Sterile.
• adj. (obsolete) Lacking self-restraint.
• n. A man who has erectile dysfunction.
• n. An impotent or powerless person.

impuissant

• adj. weak; impotent; feeble.

ineffective

• adj. not having the desired effect; ineffectual.
• adj. lacking in ability; incompetent or inadequate.

ineffectual

• adj. unable or insufficient to produce effect; futile.
• adj. worthless.
• adj. weak, indecisive; lacking forcefulness.

infertile

• adj. not fertile.

powerless

• adj. Lacking sufficient power or strength.
• adj. Lacking legal authority.

sterile

• adj. (not comparable) Unable to reproduce (or procreate).
• adj. Unprofitable.
• adj. Germless; free from all living or viable microorganisms.

unable

• adj. Not able; lacking a certain ability.

unfertile

• adj. Not fertile.