Letters that make fatuous
s, a, o, f, t, u are letters that make 'fatuous'
1 possible definitions for 'fatuous'
Under this definition, fatuous is an adjective and has the following properties:
asininity, heedlessness, mindlessness, silliness, rashness, fatuity, fatuousness, pointlessness, vacuity, inanity, senselessness, absurdity, vacuousness are derivatives of 'fatuous'.
foolish is similar to fatuous.