Informidable \In*for"mi*da*ble\ ([i^]n*f[^o]r"m[i^]*d[.a]*b'l), a. [L. informidabilis. See {In-} not, and {Formidable}.] Not formidable; not to be feared or dreaded. [Obs.] "Foe not informidable." --Milton. [1913 Webster]