extremely irritating to the nerves; "nerve-racking
noise"; "the stressful days before a war"; "a trying day at the office" Synonym(s):nerve-racking, nerve-wracking, stressful, trying
From Webster's Revised Unabridged Dictionary (1913) [web1913]:
Stressful \Stress"ful\, a.
Having much stress. --Rush.
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