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.

From Latin 'fluidus', meaning 'flowing'.

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.

liquid

A substance that flows freely but is of constant volume.

gas

An air-like fluid which expands to fill any space available.

flow

The action or fact of moving along in a steady, continuous stream.

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.