difficultness

Từ điển WordNet v3.1 - WordNet Dictionary

noun

the quality of being difficult
- they agreed about the difficulty of the climb
• Syn:
difficulty
• Ant:
ease (for: difficulty)
• Derivationally related forms:
difficult
• Hypernyms:
quality
• Hyponyms:
effortfulness, asperity, grimness, hardship, rigor,
rigour, severity, severeness, rigorousness, rigourousness, hardness,
ruggedness, formidability, toughness, burdensomeness, heaviness, onerousness,
oppressiveness, subtlety, niceness, troublesomeness, inconvenience, worriment
• Attrubites:
difficult, hard