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differentiator |
differently |
differing |
difficult |
difficulties |
difficultness
| difficulty
| diffidence
| diffident
| diffidently
| difflugia
difficultness
WORDNET DICTIONARY
Noun difficultness has 1 sense
- difficultness(n = noun.attribute) difficulty - the quality of being difficult; "they agreed about the difficulty of the climb" has particulars: effortfulness, asperity, grimness, hardship, rigor, rigorousness, rigour, rigourousness, severeness, severity, hardness, ruggedness, formidability, toughness, burdensomeness, heaviness, onerousness, oppressiveness, niceness, subtlety, inconvenience, troublesomeness, worriment
is a kind of quality
Derived form adjective difficult1
For further exploring for "difficultness" in Webster Dictionary Online