mandatory

mandatory — adjective

1. describes a rule, law, or requirement that people must follow because an authori

1.形容詞B2
釋義

describes a rule, law, or requirement that people must follow because an authority says so, leaving no room for personal choice

例句

Attendance at the safety training session is mandatory for all new employees.

mandatory for + person/group

In most states, wearing a seat belt while driving is mandatory.

mandatory + gerund phrase as subject

同義詞
  • compulsory

    Very similar in meaning; 'compulsory' is more common in education (compulsory education) and military contexts

  • obligatory

    Slightly more formal and often used for social or moral expectations rather than legal rules

  • required

    More general and less formal; fits everyday situations where something is needed as a condition

反義詞
  • optional

    Describes something you can choose to do or not do

文法句型

mandatory for + noun/pronoun

mandatory + noun

it is mandatory (for someone) to + infinitive

make it mandatory + to-infinitive

用法筆記

Frequently appears in official notices, legal documents, and workplace policies. Both predicative (after 'is') and attributive (before a noun) uses are equally common.

常見錯誤

❌The meeting is mandatory, but I think I will skip it.
✅The meeting is mandatory, so everyone must attend.
💡If something is mandatory, you have no choice to skip it; it is not optional.

mandatory — noun