An irregular polyhedron if it has plane faces. If not, then there usually will not be a name for it.
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It is called an endacehedron.
A decahedron.
pentacontahedron
It is important to learn and remember the name of 3D shapes. A 19 faced 3d shape is called a nonadecahedron.
It is called a Triacontakaidigon.