obligatory
English Thesaurus
1. morally or legally constraining or binding (adj.all)
similar | : | bounden, |
definition | : | morally obligatory (adj.all) |
similar | : | de rigueur, |
definition | : | required by etiquette or usage or fashion (adj.all) |
similar | : | imposed, |
definition | : | set forth authoritatively as obligatory (adj.all) |
similar | : | incumbent on, |
definition | : | morally binding or necessary (adj.all) |
similar | : | prerequisite, |
definition | : | required as a prior condition or course of study (adj.all) |
also | : | necessary, |
definition | : | absolutely essential (adj.all) |
2. required by obligation or compulsion or convention (adj.all)
similar | : | necessary, |
definition | : | absolutely essential (adj.all) |
3. morally or legally constraining or binding (adj.all)
antonym | : | optional, |
definition | : | possible but not necessary; left to personal choice (adj.all) |
antonym | : | optional, |
definition | : | possible but not necessary; left to personal choice (adj.all) |
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