- 2. Implacable, unappeasable, inexorable, not to be appeased, irreconcilable.
Inexplicable, a. Unaccountable, unintelligible, incomprehensible, inscrutable, mysterious, strange, enigmatical, not to be explained.
Inexpressible, a.
- 1. Unutterable, unspeakable, indescribable. See Ineffable.
- 2. Surpassing, boundless, infinite.
Inexpressibles, n. pl. [Comic euphemism.] Unmentionables, breeches, trousers, pantaloons.
Inexpressive, a. Unexpressive, characterless, blank.
Inexpugnable, a.
- 1. Impregnable, unassailable, not to be taken by assault, not to be stormed, secure from capture, tenable
against all odds.
- 2. Unconquerable, invincible, not to be subdued.
- 3. Incontrovertible, irrefragable, impregnable, unassailable, unanswerable.
Inexsuperable, a. Insurmountable.
In extenso. [L.] In full, to the full extent, at length, in full detail.
Inextinguishable, a. Unquenchable, that cannot be extinguished.
In extremis. [L.] In one’s last moments, at the point of death, in the very act of death, moribund.