non‑sequential

IPA/nˈɒn siːkwˈɛnʃəl/
IPA/nˈɑːn siːkwˈɛnʃəl/

non‑sequential — adjective

1. describing items, events, or data that are arranged or accessed without followin

1.adjectiveC1
Definition

describing items, events, or data that are arranged or accessed without following a fixed step-by-step order from first to last.

Example

Trang told the class the novel is non‑sequential, with chapters jumping between years.

describes a text whose chapters skip in time

Caleb prefers non‑sequential reading and often opens a textbook in the middle.

modifies an activity that skips fixed order

Common collocations
  • non‑sequential order
  • non‑sequential access
  • non‑sequential narrative
  • non‑sequential pattern
  • non‑sequential reading
Synonyms
  • non-linear

    broader; covers any non-straight progression, not just order

  • random-access

    technical; specifically about being able to reach any item directly

  • out-of-order

    informal; often suggests a mistake rather than a chosen design

Antonyms

Usage Note

Frequently modifies abstract nouns about order or access (reading, access, pattern, narrative). Often paired with explanations of what order is broken; readers expect a follow-up clause.

Common Mistakes

The bus was non‑sequential today.
The buses arrived in a non‑sequential order today.
the adjective describes the order of items, not a single object.

Word family

Synonym discussion

Sense: adjective/1

Non‑sequential is the neutral, slightly formal term for things that do not follow a fixed first-to-last order — it is common in tech writing, audits, and literary description. Non-linear is broader: it describes anything that does not progress in a straight line, including arguments, careers, and stories, not just ordered lists. Random-access is the technical sibling, used mainly in computing to say that any item can be reached directly. Out-of-order is the informal cousin and often hints at a mistake rather than a planned design. A library may shelve books in a non‑sequential way on purpose, an author may write a non-linear memoir, a hard drive offers random-access storage, and a clerk might apologise that the files are out-of-order.

non‑sequential ↗non-linearrandom-access ↗out-of-order

Common collocations

Nouns

  • non‑sequential order
  • non‑sequential access
  • non‑sequential narrative
  • non‑sequential pattern
  • non‑sequential reading

Adverbs

  • entirely non‑sequential
  • deliberately non‑sequential

Phrases

  • in a non‑sequential manner
  • on a non‑sequential basis

Etymology

LatinLate LatinEnglish

Formed in English by adding the negating prefix non- (from Latin non meaning 'not') to sequential, which entered English in the 19th century from Late Latin sequentialis, itself from sequi meaning 'to follow'. The compound describes anything that does not follow a fixed order, mirroring how non- attaches freely to many English adjectives.