かくしん確信kakushin
1.

A strong assurance in one's belief or judgment, characterized by unwavering certainty about the truth or correctness of a particular idea or situation.

2.

The state of being fully convinced, where an individual's confidence in their understanding or prediction is firm and resolute.

3.

An unwavering faith in the validity of a belief, regardless of external evidence or opinion, often accompanied by a sense of personal commitment to uphold that belief.

4.

The act of holding a firm belief in something, often resulting in a determined expression of that belief in conversations or arguments.

Example:

私は君の援助を確信している。

かくしんはん確信犯kakushinhan
1.

A crime committed by an individual who believes that their actions are morally or ethically justified based on their personal convictions, often related to political, religious, or social beliefs.

2.

An act that is recognized as unlawful by others but is carried out with the intention of fulfilling one's perceived duty or mission, despite knowing it may lead to negative consequences.