Definitions
extremely difficult; requiring the strength of a Hercules
Word origin
From Hercules + -an.
Used in a sentence
“But this is not the best:—look, pr'ythee, Charmian, / How this Herculean Roman does become / The carriage of his chafe.”
“a Herculean labour”
“He replied in a dry manner, that I would find it a Herculean task to chastise everybody who should laugh at my expense;”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer1 curated clues
01“Mighty in scale”9 letters
Not quite right?
"Search similar patterns."
H________