Letters that make untransmutable
s, a, b, e, l, n, m, r, t, u are letters that make 'untransmutable'
Words within untransmutable
tab, table, AB, ANS, ab, AN, SM, NT, UN, mu, mutable, ut, transmutable, able, smut, Uta, RA, Ra, LE, Sm, Ta, UT, Ab are words within 'untransmutable'