- The state of being dissatisfied, unsatisfied, or
discontented; uneasiness proceeding from the want of gratification, or
from disappointed wishes and expectations.
Meaning of 'dissatisfaction' (Princeton's WordNet)
1 . dissatisfaction
[ n]
Meaning (1): - the feeling of being displeased and discontent
Example in sentence:
he was never slow to express his dissatisfaction with the service he received