Words to Describe grueling

Things grueling often describes ("grueling ________")

• tour
• journey
• workouts
• heat
• work
• series
• weeks
• process
• conditions
• job
• course
• voyage
• ride
• jobs
• ascent
• contest
• afternoon
• practices
• practice
• business
• hour
• minutes
• hike
• days
• challenge
• assignment
• drive
• siege
• hours
• grind
• workout
• tasks
• marches
• demands
• month
• week
• routine
• experiences
• fight
• climb
• experience
• day
• interview
• war
• program
• interrogation
• exercise
• schedules
• round
• ordeal
• years
• competition
• affair
• flight
• months
• night
• race
• game
• season
• campaigns
• campaign
• regimen
• run
• meeting
• trek
• search
• test
• existence
• sun
• schedule
• period
• year
• pace
• session
• battles
• trial
• task
• effort
• labor
• sport
• stretch
• match
• march
• miles
• trip
• battle
• tests
• examination
• marathon
• sessions
• training
• struggle
• trips
• event
• regime
• exam