unctuous
un.ctu.ous \'*n(k)-ch*(-w*)s, '*n(k)sh-w*s\ aj [ME, fr. MF or ML; MF unctueux, fr. ML unctuosus, irreg. fr. L u]nctum ointment, fr. neut. of unctus, pp. 1a: FATTY, OILY 1b: smooth and greasy in texture or appearance 2a: rich in organic matter and easily workable {~ soil} 2b: PLASTIC {fine ~ clay} 3: full of unction; esp : revealing or marked by a smug, ingratiat ing, and false earnestness or spirituality - unc.tu.ous.ly av