This is the 8510th most frequent Spanish word.
ridículo
Absurd or deserving of mockery.
In this usage, "ridículo" is employed to dismiss the opinion that the fear of failure is something to be mocked or not taken seriously.
El miedo al fracaso no es ridículo; todos lo sentimos.
The fear of failure is not ridiculous; we all feel it.
In this sentence, "ridículo" is used as a descriptive adjective to convey that the hat looks absurd or laughable.
Este sombrero es ridículo.
This hat is ridiculous.
Here, "ridículo" is used to imply that someone's behavior or statement is unreasonable or silly.