HERCULEAN
Meaning of HERCULEAN in English
her ‧ cu ‧ le ‧ an /ˌhɜːkjʊˈliːən◂, hɜːˈkjuːliən $ -ɜːr-/ BrE AmE adjective
needing great strength or determination:
a herculean task
Longman Dictionary of Contemporary English.
Longman - Словарь современного английского языка.
2012