Webster's Revised Unabridged Dictionary · 1913

Baleful

Baleful (bāl"ful) , adjective

[Anglo-Saxon bealoful. See Bale misery.]

1.
Full of deadly or pernicious influence; destructive.
Baleful enemies. — Shakespeare
Four infernal rivers that disgorge Into the burning lake their baleful streams. — Milton
2.
Full of grief or sorrow; woeful; sad. [Archaic]