bn:00101358a
Adjective Concept
EN
difficult  hard
EN
Not easy; requiring great physical or mental effort to accomplish or comprehend or endure WordNet 3.0
Definitions
Examples
Relations
Sources
EN
Not easy, which needs hard work, patience and effort. OmegaWiki
Requiring a lot of effort to do or understand. OmegaWiki
Hard, not easy, requiring much effort. Wiktionary
Hard, not easy. Wiktionary (translation)
Difficult or requiring a lot of effort to do, understand, experience, or deal with. Wiktionary
EN
A difficult task WordNet 3.0 & Open English WordNet
Nesting places on the cliffs are difficult of access WordNet 3.0 & Open English WordNet
Difficult times WordNet 3.0 & Open English WordNet
Why is it so hard for you to keep a secret? WordNet 3.0 & Open English WordNet
However, the difficult weather conditions will ensure Yunnan has plenty of freshwater. Wiktionary
A hard problem;  a hard question;  a hard topic. Wiktionary
WordNet 3.0 & Open English WordNet
Wiktionary
OmegaWiki