Psychological Attitudes

adjective describing someone who does not believe in something or someone

• The unbelieving scientist refused to accept the new evidence presented to him.
• My unbelieving friend couldn't wrap his head around the idea of time travel.
• The unbelieving dude was totally shook when he saw the magic trick.
• Her unbelieving heart slowly started to open up to the possibility of love.

adjective relating to or denoting actions or beliefs that are neither forbidden nor commanded by religious law

• The debate on adiaphoristic practices in religious ceremonies has been ongoing for centuries.
• I heard that the adiaphoristic argument at the church meeting got pretty heated.
• I don't really care about all that adiaphoristic stuff, just let people do what they want.
• Her approach to decision-making is adiaphoristic, she doesn't get caught up in the details.