undiffused

7.6

Light or sound that stays in one place and is very strong

adjective
/ˌʌn.dɪˈfjuzd/

: no difuso

She preferred the undiffused sunlight coming through the window to the soft glow of lamps.

Examples

But if the sensors detect an obstacle, the focus node can become transparent, letting the beam pass straight through, undiffused and very powerful.

Fiction book (1998)
The artist used a spotlight to create an undiffused beam of light on the stage.
The magnifying glass focused the sun's rays into an undiffused point, igniting the paper.

Synonyms

undispersed

vsundiffused

1 7.2

People or things that are not spread out and stay together in one place

is about concentration in a place or single direction rather than group cohesion

unscattered

vsundiffused

6.8

Staying together in one place and not spread out

is focused on being concentrated in one direction or place

indiscrete

vsundiffused

8.1

Things not separated into clear parts that form one solid mass

is about being concentrated in one place rather than indivisibility

agglomerated

vsundiffused

7.7

Joined together in a loose mass without clear order

is simply concentrated in one place and does not imply disorder

Antonyms

diffused

4.4

Light that spreads out and looks soft, not in one direction

How Dispersed

widespread

256 3.6

scattered

1 3.5

dispersed

4.2

undiffused

7.6

localized

4.8

concentrated

Specialized

4.4

Surface Forms

undiffused positive

Morphology

undiffused = diffused (transparent) = un + diffuse + ed

The adjective 'diffused' is simply negated by the productive prefix 'un-', yielding 'not spread out', which is directly inferable.

Etymology

Undiffused begins with un- meaning 'not' and the rest is diffuse, which means 'to spread out', like water poured from a bottle. So undiffused means 'not spread out', giving concentrated, direct light or sound.