Related Clues

• Burdensome
• Exhaustive
• Wearisome
• Strenuous
• Fading fast
• Like a good workout
• Exhausting
• Growing weary
• Laborious
• Turning it round is laborious
• Flagging
• Returning it (the call) is wearisome
• Like strenuous exercise
• Wearying
• Playing it with the band is hard work
• Arduous
• Like running a marathon
• Draining