unnecessary

unnecessary — adjective

1. describes something that you could easily do without, or that is more than a sit

1.形容詞B1
釋義

describes something that you could easily do without, or that is more than a situation calls for.

例句

Christopher said the extra packaging was an unnecessary waste of plastic.

collocation: unnecessary waste of [thing]

The committee decided to cut all unnecessary expenses from the budget.

collocation: unnecessary expenses

同義詞
  • needless

    stronger emphasis on the thing being avoidable with no benefit; common in fixed phrases (needless worry, needless expense) but rarely used for one-off remarks.

  • gratuitous

    much stronger, implies the thing is not only unnecessary but also offensive, uncalled-for, or harmful (gratuitous violence, gratuitous insult).

  • superfluous

    formal; suggests the thing is extra and serves no purpose (superfluous details, superfluous ornaments).

反義詞
  • necessary

    the direct opposite; something that is needed or required.

  • essential

    stronger than necessary; implies the thing is absolutely needed and cannot be done without.

文法句型

it is unnecessary to do something

unnecessary + noun

用法筆記

Attributive position (before a noun) is extremely common: 'unnecessary expense', 'unnecessary delay', 'unnecessary risk' form fixed-sounding collocations. In predicative position ('That was unnecessary'), the tone is more evaluative — the speaker judges the thing as something that should not have happened.

常見錯誤

❌This work is unnecessary to finish today.
✅It is unnecessary to finish this work today.
💡'unnecessary' typically takes 'it' as a dummy subject in the 'it is unnecessary to do' pattern, not a personal subject.
❌The comment was needless.
✅The comment was unnecessary.
💡'needless' sounds unnatural with one-off remarks; use it for recurring situations ('needless repetition', 'needless worry').

2. describes a spoken comment or piece of behaviour that causes hurt and should not

2.形容詞B2
釋義

describes a spoken comment or piece of behaviour that causes hurt and should not have occurred in that setting.

例句

Asher thought the teacher's sarcastic remark about his answer was unnecessary and unfair.

predicative: 'was unnecessary' showing speaker judgement

The referee called the player's tackle unnecessary and gave him a yellow card.

attributive: 'unnecessary tackle' (sports context)

同義詞
  • uncalled-for

    everyday alternative with the same meaning; slightly more emotional ('That was completely uncalled-for!').

  • gratuitous

    stronger and more formal; suggests deliberate, unmotivated cruelty or offensiveness (gratuitous insult, gratuitous violence).

  • pointless

    focuses on the action having no purpose or effect, not necessarily on its offensiveness.

反義詞
  • justified

    implies the remark or action was reasonable and deserved in the situation.

  • called-for

    informal opposite; something that was appropriate and reasonable ('That comment was completely called-for').

文法句型

[remark/action] + be + unnecessary

unnecessary + [remark/criticism/comment/insult]

用法筆記

Most common in predicative position ('That was unnecessary!') as an exclamation of disapproval. In attributive position it pairs with nouns of speech or behaviour: 'unnecessary comment', 'unnecessary remark', 'unnecessary criticism'. Frequently collocates with 'completely' and 'totally' for emphasis.

常見錯誤

❌His rude joke was needless.
✅His rude joke was unnecessary.
💡'needless' is not used for judging a one-off remark as offensive; use 'unnecessary' or 'uncalled-for' instead.
❌Sorry, that was an unnecessary comment' (as a weak apology).
✅That comment was unnecessary
💡I apologise.' — The word itself can sound dismissive; many speakers soften it with an explicit apology.