Fatuous
Pronunciation : Fat"u*ous
Part of Speech : a.
Etymology : [L. fatuus.]
Definition : 1. Feeble in mind; weak; silly; stupid; foolish; fatuitous. Glanvill.
2. Without reality; illusory, like the ignis fatuus. Thence fatuous fires and meteors take their birth. Danham.
Source : Webster's Unabridged Dictionary, 1913