triumphableadj.
/ˈtrʌɪəmfəb(ə)l/ rare.
That may be triumphed in or over.
ΘΚΠ
the mind > emotion > pleasure > joy, gladness, or delight > rejoicing or exultation > [adjective] > worthy of triumph
triumphable1768
1768 Woman of Honor I. 157 No..very triumphable success.
This entry has not yet been fully updated (first published 1915; most recently modified version published online March 2018).
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adj.1768