1. Producing no result or effect
   "an unavailing attempt"
   - futile, ineffectual, otiose

See also: useless

• turacou
• turakoo
• turban
• turban squash
• turbaned
• turbary
• Turbatrix
• Turbatrix aceti
• Turbellaria
• turbellarian
• turbid
• turbidity
• turbidness
• turbinal
• turbinate
• turbinate bone
• turbine
• turbit
• turbo
• turbo-propeller plane
• turbocharge
• turbocharger
• turbofan
• turbofan engine
• turbogenerator