to float away

15 3.2

Move slowly through the air or water until out of sight

phrasal verb
/floʊt əˈweɪ/

: alejarse flotando

As the balloon started to deflate, it gently floated away into the sky.
watch it float away
just float away
let it float away

A balloon, yes, can rise and float away, but not if it's weighted down.

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Examples

In a flash, it burned loose and floated away from the greater body.

Fiction book (1990)
As they slept, their raft floated away from the island.

Fiction book (2001)
- You can just float away on it.

Licorice Pizza (2021)
The map guy's floating away!

A Minecraft Movie (2025)
And they just float away.

Little Ashes (2008)
I dropped them in the river one at a time and watched them float away.

Fiction book (1994)
Do you really think I'm going to let you float away, Professor?

Cars 2 (2011)
- Come on, Pa, before she floats away.

The Grapes of Wrath (1940)
She had to wear special shoes made of lead to keep her from floating away.

Miss Peregrine's Home for Peculiar Children (2016)
It's floating away.

Ticket to Paradise (2022)

Synonyms

to disappear

vsto float away

∞ 1.0

To stop being seen or to no longer be there

specifies a slow moving and fading process rather than a simple stop

to float

vsto float away

645 1.0

To stay or move on water without sinking, sometimes in the air

adds the idea of slowly drifting away and fading from view

to fade

vsto float away

531 1.2

To slowly become less visible, bright, or loud

adds a slow physical drifting motion as it goes out of sight

to go away

vsto float away

463 1.0

To stop being seen or felt

describes a slow drifting disappearance through air or over water

to drift

vsto float away

331 2.9

To move slowly without a clear direction, for example when air or water move something

also moves while gradually disappearing from sight as it travels

to fade away

vsto float away

69 3.0

To become weaker and then disappear over time

involves physical movement through air or water as it vanishes slowly

to fade out

vsto float away

15 3.9

Gradually become harder to see or quieter until it disappears

includes actual slow movement across space while it fades from sight

to fleet

vsto float away

Archaic

1 9.9

To gradually fade away

means the same slow passing but with actual gentle movement through space

to evanesce

vsto float away

Literature

9.9

To disappear slowly like mist

combines that slow vanishing with gentle movement through air or water

Antonyms

to stay

∞ 1.0

To remain in one place and not leave

to appear

873 1.0

To come into view or become visible

How Fast

to fly

333 1.8

to rush away

2 2.5

to float away

15 3.2

to drift away

15 4.5

Surface Forms

float away infinitive

floated away past

floated away past participle

floating away present participle

floats away third person singular

Morphology

float + away

The meaning is directly and transparently derived from combining 'float' (to move/remain on water or in air) with 'away' (to disappear or move off), yielding a clear sense of drifting/vanishing. This motion verb + particle composition is a common, predictable pattern cross-linguistically, so a B1 learner who knows both constituents will readily infer the MWE's meaning.

Etymology

Float away creates a simple picture: imagine a light feather or a small leaf that floats on the air and slowly moves away until you can no longer see it. So, float away is used to mean 'to drift away' or 'slowly disappear'.