Invertible \In*vert"i*ble\, a. [From Invert.]

1. Capable of being inverted or turned.

2. (Chem.) Capable of being changed or converted; as, invertible sugar.

Source: Webster's Revised Unabridged Dictionary (1913)
 

Invertible \In*vert"i*ble\, a. [Pref. in- not + L. vertere to turn + -ible.]

Incapable of being turned or changed.

An indurate and invertible conscience. --Cranmer.

Source: Webster's Revised Unabridged Dictionary (1913)