English Reference
adjective

intentional

adj.
US /ˌɪnˈtɛnʃənəɫ/ UK /ɪntˈɛnʃənəl/ in·ten·tion·al

  1. 01 B2 Upper Intermediate

    done on purpose and not by accident.

    done with intention or design; deliberate rather than accidental.

    Simple

    I am sure his rude comment was intentional and not just a mistake.

    In context

    The defense argued that while the damage was extensive, it was not intentional but rather the result of systemic mechanical failure.

    Usage

    Usually precedes the noun it modifies.

  2. 02 C1 Advanced FormalTechnical Law

    showing a clear plan or aim in a formal or legal way.

    relating to or characterized by conscious intent; in legal contexts, referring to an act committed with a specific mental state.

    Simple

    The lawyer had to prove that the person's actions were intentional.

    In context

    The court must determine whether the defendant's interference with the contract was intentional or merely a byproduct of their own business interests.

    Usage

    Often appears in phrases like 'intentional tort' or 'intentional harm'.

    Teacher's tip

    In legal English, this word is used to separate acts of will from acts of negligence.

These variations may not always be intentional, but they can have real impacts on students.

Phys.org· 18 Aug 2026

However, their presence on an island inhabited by people strongly suggests an intentional and ongoing relationship.

ScienceDaily· 5 Jul 2026

Borrowed from Medieval Latin intentiōnālis. By surface analysis, intention + -al.

Etymology adapted from Wiktionary, available under CC BY-SA 4.0.

This entry
Level B2 · Upper Intermediate
Frequency Frequent
Updated