D defs.my
Entry 2 senses Webster, 1913

Inseparable

/ĭnˌ-sĕp'-ẽr-əb-əl/ · In·sep·a·ra·ble · IPA /inˈsɛ.p(ə).ɹə.bl/
01 a. Not separable; incapable of being separated or disjoined.
  1. 1.
    Not separable; incapable of being separated or disjoined.
    “The history of every language is inseparable from that of the people by whom it is spoken.” — Mure.
    “Liberty and union, now and forever, one and inseparable.” — D. Webster.
  2. 2.
    Invariably attached to some word, stem, or root; as, the inseparable particle un-.(Gram.)