Fiddle-footed is an adjective used to describe someone who is restless, unable to stay still or calm. The antonyms for this word would be calm, composed, tranquil, and placid. People who are fiddle-footed may also be described as agitated, restless, or jittery, so antonyms for these words would also apply. Other antonyms for fiddle-footed would be stable, grounded, and steady. When looking for antonyms for fiddle-footed, one can use any word that describes someone who is not fidgety, nervous, or constantly moving. Words like focused, determined, and attentive would also be antonyms for fiddle-footed.