D defs.my
Entry 2 senses Webster, 1913

Indissoluble

· In·dis·so·lu·ble · IPA /ɪndɪˈsɒljʊbəl/
01 a. Not dissoluble; not capable of being dissolved, melted, or liquefied; insoluble; as, few substances are indissoluble by heat, but many are …
  1. 1.
    Not dissoluble; not capable of being dissolved, melted, or liquefied; insoluble; as, few substances are indissoluble by heat, but many are indissoluble in water.
  2. 2.
    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 Forever knit.” Shak.