This is the 12774th most frequent Spanish word.
omiso
Omiso: Neglectful or disregarding.
In this sentence, 'omiso' is part of 'hacer caso omiso', which means to ignore or disregard something.
El conductor hizo caso omiso de la señal de alto.
The driver ignored the stop sign.
Here, 'omiso' appears again in 'hacer caso omiso,' emphasizing the act of neglecting or not paying attention to warnings.
No debemos hacer omiso a las advertencias de seguridad.
We should not ignore safety warnings.
In this case, 'omisa' ('omiso' in feminine form) is used as an adjective describing someone who neglects or avoids something explicitly.