What does informed mean?
Informed means having relevant knowledge and a clear awareness of a subject or situation. The word is especially common when describing decisions, opinions, choices, or judgments: an informed decision is one based on facts, careful thought, and an understanding of the consequences, rather than guesswork or prejudice. It can also describe a person who is knowledgeable or up to date, as in “an informed observer.” In medical and legal contexts, phrases such as “informed consent” refer to agreement or permission given after information has been understood. The adjective can suggest practical understanding rather than superficial familiarity. As a past form of the verb inform, informed also appears in expressions such as “kept the public informed.” Its Latin roots connect it with the idea of shaping or forming someone’s knowledge through instruction, which explains its close relationship to information and informative language.
Having knowledge or awareness of a subject or situation, especially because you have received relevant facts or experience.
"The committee made an informed decision after reviewing the evidence."
In professional and legal contexts, it often implies knowledge sufficient for responsible judgment.
Past tense and past participle of inform: to tell someone something or to make them aware of information.
"The spokesperson informed reporters of the change in policy."
This form usually takes an indirect object when the recipient is named: “She informed the team,” rather than “She informed the team that…” being less typical.
The word informed comes from the idea of being shaped by information: knowing a subject is not merely having facts, but understanding what they mean.
Reviewed by Deb Chak, Editor. AI-assisted content curated by RJS Tech Solutions LLP.
Where does informed come from?
The word comes through French from Latin informare, a combination of in- and forma, meaning to shape or form. In English, it originally referred to giving shape or instruction to a person or thing. Over time, the meaning developed toward receiving or possessing knowledge, and the related words information and informative retain the sense of informing or giving knowledge.
Related word forms
How informed is actually used
The adjective is common in both formal and informal contexts. In legal, medical, and educational settings, it often implies that a person has received information and understands its implications.
Easily confused with informed
This entry concerns the adjective; when used as a verb form, informed can mean having told someone something.