underneath

underneath — preposition

1. in a position directly below something, often with the sense that the thing on t

1.prepositionB1
Definition

in a position directly below something, often with the sense that the thing on top is covering or hiding it from view

Example

Tyler found his wallet underneath a pile of old newspapers on the kitchen table.

The cat stayed hidden underneath the wooden porch during the whole thunderstorm.

Common collocations
  • underneath the table
  • underneath the surface
  • underneath the bed
  • underneath a layer of
Synonyms
  • under

    more common in everyday speech; does not necessarily suggest hiding or covering

  • beneath

    slightly more formal; can be used in similar contexts

  • below

    at a lower level but not necessarily directly under or covered

Antonyms

Grammar Patterns

underneath + noun phrase

Usage Note

Unlike 'under', 'underneath' often implies that the thing above covers or conceals the thing below. Compare: 'The ball rolled under the car' (location only) versus 'The ball rolled underneath the car' (hidden from view).

Common Mistakes

The pen is underneath.' (missing object)
The pen is underneath the notebook.
As a preposition, 'underneath' requires a noun phrase as its object.

2. used to describe the true feelings, personality, or nature of a person or thing

2.prepositionB2
Definition

used to describe the true feelings, personality, or nature of a person or thing that is hidden behind a different outward appearance or behaviour

Example

Underneath her calm expression, Élise was extremely nervous about the important exam.

figurative: underneath + appearance to reveal hidden feeling

Kofi seems very strict, but underneath that serious manner he has a warm heart.

Common collocations
  • underneath it all
  • underneath the surface
  • underneath her calm manner
  • underneath his tough exterior
Synonyms
  • beneath

    also used figuratively for hidden feelings; slightly more formal

  • deep down

    adverbial phrase; less formal, more conversational

Antonyms

Grammar Patterns

underneath + noun phrase referring to appearance or behaviour

Usage Note

This sense is almost always followed by a noun phrase describing an external appearance (e.g., 'his calm manner', 'her confident smile'). The sentence then reveals the contrasting inner reality. Common in phrases like 'underneath it all' or 'underneath the surface'.

Common Mistakes

Underneath he is kind.' (missing noun phrase, sounds like adverb use)
Underneath his tough exterior, he is very kind.
The preposition requires an object to name the outward quality being contrasted.

underneath — adverb

underneath — noun

Word family

  • under
    prepositionA1
  • under
    adverbA2
  • beneath
    prepositionB2
  • beneath
    adverbB2
  • below
    prepositionA2
  • below
    adverbA2
  • underside
    nounB2
  • underlying
    adjectiveC1

Synonym discussion

Sense: preposition/1

All four words describe a lower position, but they differ in usage and nuance. 'Under' is the most common and neutral choice — it simply means 'at a lower level than' ('The ball rolled under the car'). 'Underneath' is more specific: it often suggests that the thing on top is covering or hiding the thing below ('She found her ring underneath the sofa cushion'). 'Beneath' is slightly more formal and can be used both literally ('The soil beneath the grass') and figuratively ('He considers such work beneath him'). 'Below' is the most general — it can mean 'at any lower point' and does not require the objects to be touching or directly aligned ('The fish swam below the surface'). For everyday situations where no hiding or covering is involved, use 'under'. When you want to emphasise that something is hidden from view, 'underneath' is the better choice.

underbeneathbelowunderneath

Common collocations

Nouns

  • the underneath of
  • the surface underneath

Adverbs

  • directly underneath
  • right underneath
  • hidden underneath
  • buried underneath
  • tucked underneath

Phrases

  • underneath it all
  • underneath the surface
  • from top to underneath

Prepositions

  • from underneath
  • on the underneath of

Etymology

Old EnglishMiddle EnglishEnglish

'Underneath' comes from Old English 'underneothan', which was formed by combining 'under' (meaning 'under') with 'neothan' (meaning 'beneath' or 'downward'). The word has been used for over a thousand years, and its structure — literally 'under beneath' — reflects a common Old English habit of reinforcing a word by adding a similar one. The figurative sense describing hidden feelings or character developed later, in the 19th century.