essentially

essentially — adverb

1. used to describe the most basic or important quality of something, without focus

1.adverbB2
Definition

used to describe the most basic or important quality of something, without focusing on specific details or differences

Example

The two job offers are essentially the same, with similar pay and working hours.

collocation: 'essentially the same'

Priya was essentially arguing that the team needed more time, not more people.

Common collocations
  • essentially the same
  • essentially different
  • essentially a [noun]
  • essentially about
  • essentially unchanged
Synonyms
  • fundamentally

    very close in meaning; 'fundamentally' can suggest deeper, underlying principles

  • basically

    more informal and common in speech; less precise than 'essentially'

  • in essence

    the full prepositional phrase; slightly more formal

  • at heart

    idiomatic; emphasises the true character rather than appearance

Antonyms
  • superficially

    opposite perspective — looking only at surface details rather than the core nature

Grammar Patterns

sentence adverb + comma + clause

be + essentially + noun phrase

essentially + the same/different/opposite

Usage Note

Frequently used as a sentence adverb at the start of a clause. It signals that the speaker is describing the core nature of a situation rather than its surface details. Common in both formal writing and everyday conversation.

Common Mistakes

This film is essentially boring.
This film is essentially a love story set in wartime.
'essentially' describes fundamental nature, NOT the degree of a quality (use 'extremely' or 'very' for degree).
It is essentially important to arrive on time.
It is essentially the same procedure as last year.
'essentially' does not mean 'absolutely' or 'extremely'; it refers to the basic character of something.

Word family

Synonym discussion

Sense: adverb/1

All four expressions point to the core nature of something, but they differ in register and nuance. 'Fundamentally' carries a stronger tone of underlying principles or causes — you might say a policy is 'fundamentally flawed' to suggest a deep structural problem. 'Basically' is the most casual and versatile, common in speech and informal writing, but it can sound vague in formal contexts. 'In essence' is a prepositional phrase that works well in academic or professional prose, often introducing a summary of a complex idea. 'At heart' is more personal and emotional, typically used for people or their motives: 'She is at heart a teacher.' In formal writing, 'essentially' and 'fundamentally' are the safest choices; 'basically' suits informal conversation. For example: 'The two systems are essentially identical, though one runs on Windows and the other on Mac.' Vs. 'He is at heart a kind person, despite his rough manner.'

fundamentally ↗basically ↗in essenceat heart ↗

Common collocations

Adverbs

  • essentially identical
  • essentially unchanged
  • essentially correct

Phrases

  • essentially the same
  • essentially different
  • essentially a [noun]

Prepositions

  • essentially about
  • essentially the same as

Etymology

LatinFrenchEnglish

From 'essential' (late Middle English, from Latin 'essentialis' meaning 'of or pertaining to the essence of a thing'), combined with the adverbial suffix '-ly'. The Latin root 'essentia' means 'being, essence' and comes from 'esse' (to be). The adverb form emerged in the early 17th century, originally meaning 'in respect of essence' and later developing the broader sense of 'fundamentally' or 'in its basic nature'.