greatesthurdle

noun
UK /ˈɡreɪtɪst ˈhɜːdl/
US /ˈɡreɪtɪst ˈhɜːrdl/

The biggest problem or hard thing you have to get past.

Learning to swim was the greatest hurdle for the little boy.


OTHER MEANINGS

2. The hardest race jump to clear in a track event.

The greatest hurdle in the race came near the finish line.

3. The most important problem a team must solve first.

Money was the greatest hurdle for the new club.

4. The toughest test of courage someone faces.

Speaking on stage was her greatest hurdle.