ThesaurusAntonymsRelated WordsSynonymsLegend:
| Adj. | 1. | incumbent on - morally binding or necessary; "it is incumbent on me to attend"obligatory - morally or legally constraining or binding; "attendance is obligatory"; "an obligatory contribution" |
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
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