Select the most appropriate synonym of the given word.

INEFFECTUAL

Abortive

The most appropriate synonym of the word "ineffectual" is abortive.

• Ineffectual means "not producing any significant or desired result."
• Abortive means "not successful or complete; ending in failure."

The other words do not have the same meaning as "ineffectual".

• Appalling means "extremely bad or shocking."
• Abetter means "to encourage or help someone to do something wrong."
• Ambiguous means "having more than one possible meaning."