stably

IPA/ˈsteɪbli/
IPA/ˈsteɪbli/

stably — adverb

1. in a steady, controlled way that does not shake, vary, or fall out of balance —

1.adverbB2
Definition

in a steady, controlled way that does not shake, vary, or fall out of balance — used for physical objects that do not move, emotional states that do not change suddenly, or financial systems that do not rise and fall sharply

Example

The old oak table stood stably on the uneven stone kitchen floor for fifty years.

stand + stably for physical position

Asher's income grew stably each year after he opened his own repair shop.

grow stably + financial context

Common collocations
  • stand stably
  • remain stably
  • grow stably
  • hold stably
  • stay stably
  • stably positioned
  • stably attached
Synonyms
  • steadily

    emphasises even, continuous movement or progress rather than fixed position; income grows steadily, not stably

  • firmly

    suggests physical pressure or determined hold; more active and forceful than stably

  • consistently

    focuses on repeated patterns over time rather than a single unchanging state

  • securely

    implies safety from risk or loss rather than mere lack of movement

Antonyms
  • unstably

    direct opposite; likely to move, change, or collapse

  • precariously

    in a dangerously unstable way, with risk of falling or failing

  • erratically

    with unpredictable changes in direction, speed, or behaviour

Grammar Patterns

verb + stably

remain/stay + stably + adjective

stably + past participle (stably attached, stably positioned)

Usage Note

Often used with verbs of position or duration such as stand, remain, stay, hold, and grow. In everyday speech, the adjective stable + noun (stable income, stable condition) is far more common than the adverb form.

Common Mistakes

The patient's condition is stably.
The patient's condition is stable.
stably is an adverb, not an adjective; use stable after linking verbs like be, seem, or feel.
She walked stably across the room.
She walked steadily across the room.
stably refers to long-term resistance to change, not moment-to-moment balance in motion; use steadily for even-paced movement.

2. describing how a substance or material holds its molecular form, atomic arrangem

2.adverbC1
Definition

describing how a substance or material holds its molecular form, atomic arrangement, or physical properties over time without breaking down or reacting — used in chemistry, physics, biology, and materials science

Example

The new ceramic coating bonded stably to the metal surface even under extreme heat.

bonded stably + material science

When cooled slowly, the atoms arranged themselves stably into a perfect crystal structure.

arranged stably + atomic structure

Common collocations
  • bond stably
  • remain stably
  • exist stably
  • arrange stably
  • stably attached
  • stably bonded
  • stably solid
Synonyms
  • inertly

    specifically means not reacting chemically; narrower and more technical than stably

  • durably

    emphasises lasting a long time without wearing out or breaking down

Antonyms
  • unstably

    in chemistry, refers to compounds that decompose or react readily

  • reactively

    tending to undergo chemical reactions with other substances

Grammar Patterns

verb + stably

remain/stay + stably + adjective/past participle

stably + past participle

Usage Note

Primarily found in scientific writing — chemistry, physics, biology, and materials science. The chemical sense specifies that a substance does not react, decompose, or change its structure under given conditions. Distinguish from adverb/1: this sense requires a scientific context (compounds, molecules, isotopes), while adverb/1 covers general physical, emotional, or financial stability.

Common Mistakes

The chemical reacted stably with the acid.
The chemical remained stable when mixed with the acid.
a stable substance does not react; using react with stably creates a contradiction.

Word family

Synonym discussion

Sense: adverb/1

Steadily, firmly, consistently, and securely all overlap with stably but differ in focus. Steadily emphasises even, continuous movement or progress — an income can grow steadily over years, while something that stands stably does not move at all. Firmly suggests physical pressure or a determined hold: you hold a railing firmly during an earthquake, but a table that stands stably does not need active force to stay in place. Consistently refers to patterns repeated over time (she arrived consistently on time) rather than a single unchanging state. Securely adds the idea of safety from risk — a door locked securely cannot be opened easily; a structure held stably may still be accessible. For example, 'The scaffolding stood stably while the workers climbed it' means it did not sway; 'The workers climbed steadily' means they moved at an even pace; 'They held the rope firmly' means they gripped with strength; 'They tied the load securely' means it could not come loose.

steadily ↗firmly ↗consistently ↗securely ↗

Common collocations

Nouns

Adverbs

  • quite stably
  • relatively stably
  • remarkably stably
  • chemically stably

Phrases

  • remain stably
  • stay stably
  • hold stably
  • function stably
  • operate stably

Etymology

LatinOld FrenchMiddle EnglishEnglish

Stably comes from the adjective stable, which entered Middle English from Old French estable, from Latin stabilis meaning 'firm, steadfast'. Stabilis itself comes from the Latin verb stare, 'to stand'. The adverb suffix -ly was added to stable in English, with the earliest recorded uses dating from the 14th century. The chemical sense developed much later, in the 19th century, as modern chemistry needed a term for substances that do not break down or react.