'Stressful' definitions:

Definition of 'stressful'

From: WordNet
adjective
Extremely irritating to the nerves; "nerve-racking noise"; "the stressful days before a war"; "a trying day at the office" [syn: nerve-racking, nerve-wracking, stressful, trying]

Definition of 'Stressful'

From: GCIDE
  • Stressful \Stress"ful\, a. Having much stress. --Rush. [1913 Webster]