As a verb, diffuse means to spread something out, but also applies to spreading things such as ideas or culture so that they become widely known. When something is diffused, it's mixed in, and when you …

Diffuse is commonly found used as both adjective ("not concentrated or localized") and verb ("to pour out and permit or cause to spread freely," "to scatter"), while infuse is almost entirely restricted to use …

1. Widely spread or scattered; not concentrated: Diffuse light is often hard to read by. 2. Wordy or unclear: a diffuse description. See Synonyms at wordy.

diffuse adjective (SPREAD) spread out and not directed in one place: a diffuse light

If you describe something as diffuse, you mean that it is vague and difficult to understand or explain. His writing is diffuse and it is difficult to make out what he is trying to say.

Feb 16, 2026 · Adjective diffuse (comparative more diffuse, superlative most diffuse) Everywhere or throughout everything; not focused or concentrated.

to (cause to) spread or scatter widely: [no object] The light diffused into the room.[~ + object] Diffuse the light in your room to avoid glare. Physics to spread out freely without restriction;

Diffuse refers to the process of spreading out or dispersing over a wide area or among a large number of people. It can also link to a situation that lacks clarity or is not concentrated in one place.

Everywhere or throughout everything; not focused or concentrated. Such a diffuse effort is unlikely to produce good results.

Diffuse means to spread out. Candlelight can diffuse a soft glow throughout a room. A diffuse idea is one that spreads from person to person, and a diffuse speech is scattered and unclear.