Synonyms: delicate, touchy, ticklish
Definition: difficult to handle; requiring great tact
Usage: delicate negotiations with the big powers; hesitates to be explicit on so ticklish a matter; a touchy subject
Similar words: difficult, hard
Definition: not easy; requiring great physical or mental effort to accomplish or comprehend or endure
Usage: a difficult task; nesting places on the cliffs are difficult of access; difficult times; why is it so hard for you to keep a secret?