s/n4709585

Information
has gloss	(noun) the quality of requiring deliberate effort effortfulness
lexicalization	eng: effortfulness
subclass of	(noun) the quality of being difficult; "they agreed about the difficulty of the climb" difficulty, difficultness
has subclass	(noun) extreme effortfulness arduousness, strenuousness
has subclass	(noun) the quality of requiring extended effort operoseness, laboriousness, toilsomeness

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opposite	(noun) the quality of requiring little effort; "such effortlessness is achieved only after hours of practice" effortlessness