1) Always together 2) French word used in English 3) Incapable of being parted 4) Indissoluble 5) Indivisible 6) Some friends 7) Undividable 1) Asone 2) Indivisible 3) One 4) Thick as thieves 5) Unseparable 
• (a.) Invariably attached to some word, stem, or root; as, the inseparable particle un-. • (a.) Not separable; incapable of being separated or disjoined.
In·sep'a·ra·ble adjective [ Latin inseparabilis : confer French inséparable . See In- , and Separable .] 1. Not separable; incapable of being separated or disjoined. « The history of every language is inseparable from that of the people by whom it...
[adj] - not capable of being separated
adjective not capable of being separated; `inseparable pieces of rock`
incapable of being separated, parted, or disjoined: inseparable companions.