Definition: a difficulty that causes anxiety
Definition: the quality of being difficult
Usage: they agreed about the difficulty of the climb
Definition: the quality of not being useful or convenient
Definition: the quality of having the wrong properties for a specific purpose
Definition: an inconvenient discomfort
Definition: to cause inconvenience or discomfort to
Usage: Sorry to trouble you, but...
Definition: have an effect upon
Usage: Will the new rules affect me?