uninformed

UK: ˌʌnɪnˈfɔːmd | US: ˌʌnɪnˈfɔːrmd

Definition
  1. adj. lacking knowledge or awareness about a particular subject

  2. adj. not based on adequate information or research

Structure
un <not>in <into>form <shape>ed <adjective suffix>
Etymology

The word "uninformed" combines the prefix "un-" (meaning "not"), the prefix "in-" (meaning "into"), the root "form" (from Latin "forma," meaning "shape" or "structure"), and the suffix "-ed" (forming adjectives). Originally, "inform" meant "to shape or train the mind," evolving into "to provide knowledge." "Uninformed" thus literally means "not shaped by knowledge," reflecting a lack of awareness or education.

Examples
  1. The public remained uninformed about the policy changes.

  2. His decision was uninformed and led to poor results.

  3. She felt uninformed after skipping the briefing.

  4. Uninformed opinions often spread misinformation.

  5. The article criticized the uninformed debate on the issue.