bn:00097472a
Adjective Concept
EN
arduous
Definitions
Examples
Relations
Sources
EN
Difficult to accomplish; demanding considerable mental effort and skill. OmegaWiki
EN
The arduous work of preparing a dictionary WordNet 3.0 & Open English WordNet
DERIVATION
SIMILAR
WordNet 3.0 & Open English WordNet
EN
OmegaWiki
EN