clueless

This term carries a strong connotation of obliviousness, often suggesting a gap between the person's perception and reality. It is frequently used in casual or critical contexts to describe someone who is not just uninformed, but strikingly unaware of obvious social cues or factual evidence. While it can describe a temporary lack of knowledge regarding a specific task, it often implies a broader lack of intuition or common sense. It is more judgmental than words like ignorant or unaware, often bordering on a critique of the person's competence or social intelligence.