Vague meaning: fuzzy at the edges, short on detail

Vague meaning and definition: four everyday senses

1. Not specific (words and plans). "The instructions were vague, so nobody knew which form to fill in." Key information is missing.
2. Hard to see or hear clearly. "A vague outline of hills appeared in the mist."
3. Not fully formed (thoughts and feelings). "I have a vague feeling I have met her before." "He has only a vague idea of how the engine works."
4. Absent-minded (people). "My grandfather gets a bit vague in the evenings." Here it describes someone who seems distracted or unclear in thought.

Using vague in sentences

• The job advert was so vague that applicants could not tell what the role involved.
• She gave a vague wave from across the street and kept walking.
• I vaguely remember a red bicycle from when I was four.
• Do not be vague in your essay conclusion; state your answer clearly.
• Asked about the missing funds, the treasurer stayed deliberately vague.

Common pairings and phrases

Vague often comes with words for ideas and impressions: a vague idea, a vague sense, a vague memory, a vague promise, a vague answer, vague details. The phrase not the vaguest idea means no idea at all. The adverb vaguely is very common, as in vaguely familiar (you almost recognise it) or vaguely worded (written without precision). The noun vagueness names the quality: "The vagueness of the rules caused arguments."

Vague or ambiguous

These two get mixed up, but they describe different kinds of unclear:

A vague sentence needs more information; an ambiguous one needs the right meaning picked out. Something abstract may also feel vague, but abstract only means not physical or concrete. Writing that is lucid is the cure for both problems.

A wandering word: the origin

Vague crossed into English from French during the 1540s, when its French parent meant empty or wandering and came from Latin vagus, roaming, also used for uncertain thoughts. That picture of a mind or statement that wanders without landing anywhere still fits. The same Latin root sits behind vagabond, a wanderer, and vagary, an odd change. Over the 1700s and early 1800s the English word spread from statements to ideas, feelings and things seen dimly.

When vagueness matters

The definition of vague sounds harmless, yet the quality has real costs. At work, vague goals lead to missed deadlines, so managers are often told to set specific targets. In school, teachers mark down vague answers that do not show reasoning. In law, a rule so vague that ordinary people cannot tell what it forbids may be challenged in court in several legal systems, the American one among them. In conversation, though, a little vagueness can be polite: "I might be busy" is a gentle way to decline. Being tentative is related, but tentative means unsure or provisional, not short on detail. Plenty of handy words wait in everyday vocabulary.