Nelson-Denny Practice Test

The term that best describes someone who is opinionated and rigid in their beliefs is "dogmatic." This word is often used to refer to individuals who assert their opinions or beliefs as if they are undeniable facts, leaving little room for doubt or alternative perspectives. A dogmatic person typically adheres strictly to their views and is unwilling to consider other viewpoints or change their mind, which aligns perfectly with the characteristics mentioned in the question.

The other terms provided contrast significantly with this notion. "Flexible" suggests adaptability and openness to new ideas, indicating a willingness to change one's mind. "Indecisive" refers to someone who struggles to make decisions, which does not imply strong beliefs. Lastly, "open-minded" describes a person who is receptive to different perspectives, often challenging their own views rather than adhering to rigid beliefs. Thus, "dogmatic" stands out as the most accurate description of someone who is opinionated and inflexible in their beliefs.