Fluid

/ˈfluː.ɪd/

Meaning & Definition

noun
A substance that has no fixed shape and yields easily to external pressure; a gas or (especially) a liquid.
Water and oil are both examples of fluids that can flow and take the shape of their containers.
A system or procedure that is characterized by continuous change, activity, or progress.
The timeline of the project is fluid and may change as new information becomes available.
adjective
Pertaining to a substance that can flow; not solid.
The artist used fluid strokes to convey emotions in her painting.
Characterized by grace and smoothness of movement.
The dancer had a fluid style that captivated the entire audience.
Easily changeable; subject to change.
The rules are fluid and may adapt to different situations as needed.

Etymology

From Latin 'fluidus', meaning 'flowing'.

Common Phrases and Expressions

in a fluid state:
Describing something that is changeable or dynamic.
fluid dynamics:
The study of fluids (liquids and gases) in motion.
fluid intelligence:
The ability to solve new problems without prior knowledge.

Related Words

Slang Meanings

Used to describe being in a good state or flow.
I'm feeling fluid today; everything seems to be going right.
Refers to someone being adaptable and easy-going.
He's really fluid when it comes to handling changes at work.