1. A performer.

Nuttall's Standard dictionary of the English language By Nuttall, P.Austin

• excutant,
• wxecutant,
• sxecutant,
• dxecutant,
• rxecutant,
• 4xecutant,
• 3xecutant,
• ezecutant,
• ececutant,
• edecutant,
• esecutant,
• exwcutant,
• exscutant,
• exdcutant,
• exrcutant,
• excecutant,
• exxecutant,
• executint,
• executent,
• executaunt

• execution,
• exocet,
• executioner,
• exactly,
• exacta,
• executrix,
• executive,
• executor,
• exacting,
• exaction,
• exactness,
• Executable,
• executing,
• executed,
• exactitude,
• execute.

The adjective form of the word "executant" is "executant". However, if you are asking for a word that can be used to describe or modify the noun "executant," you could use words like "skilled," "capable," "proficient," or "accomplished".

The plural of the "executant" can be the "executants".

The singular of the "executant" can be the "executant".