impacable

== English == === Etymology === From Latin im- (“not”) + pacare (“to quiet”). See pacate. === Adjective === impacable (comparative more impacable, superlative most impacable) (obsolete) implacable (unable to be appeased) Synonym: unpacable ==== Related terms ==== impacability impacably === References === “impacable”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.