adjective
- not dissoluble; incapable of being dissolved, decomposed, undone, or destroyed.
- firm or stable.
- perpetually binding or obligatory.
adjective
- incapable of being dissolved or broken; permanent
mid-15c. (implied in indissolubly), from Latin indissolubilis “that cannot be dissolved,” from in- “not, opposite of” (see in- (1)) + dissolubilis, from dis- + solubilis (see soluble).