| 例句 |
incumbentadjective forcing one's compliance or participation by or as if by lawit is incumbent upon you to attend every staff meeting compulsory, forced, imperative, involuntary, mandatory, necessary, nonelective, obligatory, peremptory, required all-important, essential, indispensable, needed, requisiteinsistent, persistent, pressing, urgentdemanded, enforcedcoercive elective, optional, voluntary chosen, discretionarydispensable, unnecessary, unneeded, unwantedinconsequential, insignificant, nonessential, unimportant in the 15th century |