INEFFICACIOUS Antonyms

• properly or sufficiently qualified or capable or efficient

• legally qualified or sufficient

• adequate, but not outstanding or exceptional

• producing or capable of producing an intended result or having a striking effect

• able to accomplish a purpose; functioning effectively

• works well as a means or remedy

• exerting force or influence

• existing in fact; not theoretical; real

• ready for service

• being effective without wasting time or effort or expense

• able to accomplish a purpose; functioning effectively

• having or exercising influence or power

• having a strong physiological or chemical effect

• (of a male) capable of copulation

• having great influence

• having or wielding force or authority

• having great power or force or potency or effect

• (Southern regional intensive) very; to a great degree

• strong enough to knock down or overwhelm

• having great influence

• (of a person) possessing physical strength and weight; rugged and powerful

• displaying superhuman strength or power

• producing or capable of producing (especially abundantly)

• having the ability to produce or originate

• yielding positive results

• marked by great fruitfulness

• having strength or power greater than average or expected

• having a strong physiological or chemical effect

• not faint or feeble

• having or wielding force or authority

• immune to attack; incapable of being tampered with

• of good quality and condition; solidly built

• of verbs not having standard (or regular) inflection

• being distilled rather than fermented; having a high alcoholic content

• freshly made or left

• strong and sure

• having succeeded or being marked by a favorable outcome

• marked by qualities giving the power to produce an intended effect

• producing or capable of producing an intended result or having a striking effect