12-Letter Words Containing: I,I,L,S,S,T

• a substance added to plastics or other materials to make them more pliable

• the act of stylizing; causing to conform to a particular style

• become unstable

• make unstable

• a bow used in playing the violin

• clarity as a consequence of being explicit

• a system of naming the notes of a musical scale by syllables instead of letters

• singing using solfa syllables to denote the notes of the scale of C major

• A tightrope walker.