SAT GRE TOEFL

obligatory

Definition

Required by a rule, law, or social custom; mandatory.

Example

"Wearing a helmet on the construction site is obligatory for safety."
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Study tips featuring "obligatory"

TOEFL Academic Vocabulary: Study by Topic How Context Clues Save You on the SAT

Related words

SAT antonym SAT abase SAT abdicate SAT abdomen SAT abduction SAT abet SAT abeyance SAT abject SAT abjure SAT ablution SAT abnegate SAT abnormal