Which word describes a person who is bold to the point of rudeness?

The word "presumptuous" aptly describes a person who is bold to the point of rudeness because it conveys an attitude of overstepping boundaries or taking liberties without the appropriate regard for others' feelings or circumstances. This term often implies that the individual acts in a self-assured manner that can be deemed offensive or disrespectful due to a lack of consideration for social norms or the connotations of their actions.

In this context, "presumptuous" captures not only the boldness but also the negative implications of that boldness when it disregards social grace or politeness. It reflects a confident attitude that crosses over into impertinence, suggesting an inappropriate level of familiarity or intrusion into matters that may not concern them.

The other words provided do not fit this definition as precisely. "Stupefying" relates to causing astonishment or confusion rather than indicating rudeness. "Inquisitive" describes a person who is curious or eager for knowledge, which does not inherently carry a negative connotation. "Tactful" refers to being sensitive to the feelings of others or handling difficult situations with sensitivity, which is the opposite of bold rudeness. Thus, "presumptuous" is the most fitting choice for