<ais523> ` printf \'#include <stdio.h>\\nint main(void) { float C = 4.0; printf("%%f", C/C++); }\' | gcc -fno-diagnostics-color -Wall -Wextra -x c /dev/stdin

Ambiguous, from Greek 'ἀν-' lack of, and 'βιγός' clarity of meaning, means when something is unclear in its meaning. Antonym: biguous.