In*dis"so*lu*ble (?), a. [L. indissolubilis: cf. F. indissoluble. See In- not, and Dissoluble, and cf. Indissolvable.]
Not dissoluble; not capable of being dissolved, melted, or liquefied; insoluble; as few substances are indissoluble by heat, but many are indissoluble in water.
Incapable of being rightfully broken or dissolved; perpetually binding or obligatory; firm; stable, as, an indissoluble league or covenant.
To the which my duties
Are with a most indissoluble tie
© Webster 1913.