dis*as"trous*ness
Webster's Dictionary (GCIDE)
Disastrous \Dis*as"trous\, a. [Cf. F. d['e]sastreux. See Disaster.]
1.Full of unpropitious stellar influences; unpropitious; ill-boding. [Obs.] [1913 Webster]
The moon In dim eclipse, disastrous twilight sheds.— Milton.[1913 Webster]
2.Attended with suffering or disaster; very unfortunate; calamitous; ill-fated; ending in utter failure or ruin; as, a disastrous day; a disastrous termination of an undertaking. [1913 Webster]
Wherein I spake of most disastrous chances. --Shak. -- Dis*as"trous*ly, adv. -- Dis*as"trous*ness, n. [1913 Webster]