कठिन

arduous; complex; complicated; cumbersome/combrous; difficult; hard; inextricable; insuperable; insurmountable; intricate; knotty; laborious; severe

कठिन; दुष्कर; जटिल; पेचीदा; बोझिल; मुस्किल; विकट; दुर्गम; अलंघ्य; दुस्तर; दुरूह; दुर्नम्य