1. A goal, objective, or intended recipient that has not been clearly specified or determined
The marketing campaign failed because it was aimed at an undefined target.
A campanha de marketing falhou porque era direcionada a um alvo indefinido.
2. In programming, a reference or pointer that does not point to a valid or known memory location
The function returned an undefined target, causing the program to crash.
A função retornou um alvo indefinido, causando uma falha no programa.