a. [ Cf. F. désastreux. 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 ] | 