Synonyms: tiresomeness, tediousness, tedium
Definition: dullness owing to length or slowness
Similar words: dullness
Definition: the quality of lacking interestingness
Usage: the stories were of a dullness to bring a buffalo to its knees
Synonyms: boredom, tedium, ennui
Definition: the feeling of being bored by something tedious
Similar words: dissatisfaction
Definition: the feeling of being displeased and discontent
Usage: he was never slow to express his dissatisfaction with the service he received