Entry 2 senses · 2 variants Webster, 1913 Infusible · In·fu·si·ble · IPA a. a. 01 a. Capable of being infused. 1. Capable of being infused. “Doctrines being infusible into all.” — Hammond. 02 a. Not fusible; incapable or difficult of fusion, or of being dissolved or melted. 1. Not fusible; incapable or difficult of fusion, or of being dissolved or melted. “The best crucibles are made of Limoges earth, which seems absolutely infusible.” — Lavoisier (Trans. ).