'aggravation' definitions:

Definition of 'aggravation'

(from WordNet)
noun
An exasperated feeling of annoyance [syn: aggravation, exasperation]
noun
Unfriendly behavior that causes anger or resentment [syn: aggravation, irritation, provocation]
noun
Action that makes a problem or a disease (or its symptoms) worse; "the aggravation of her condition resulted from lack of care" [syn: aggravation, exacerbation]

Synonyms of 'aggravation'

From: Moby Thesaurus