The Collaborative International Dictionary of English v.0.48:
Stressful \Stress"ful\, a. Having much stress. --Rush. [1913 Webster]WordNet (r) 3.0 (2006):
stressful adj 1: 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]