which 2 words are most nearly opposite in meaning?

Question

Acute, bumbling, optional, taut

Answer: Bumbling and Taut

Answer 1

http://www.answers.com/acute

http://www.answers.com/bumbling

http://www.answers.com/optional

http://www.answers.com/taut

Answer 2

Therefore, I am right???

The antonym for Bumbling is efficient. Taut is Marked by the efficient, sparing, or concise use of something,

Is that correct?