"unstated" in the adjective sense
1. unexpressed, unsaid, unstated, unuttered, unverbalized, unverbalised, unvoiced, unspoken
not made explicit
"the unexpressed terms of the agreement"
"things left unsaid"
"some kind of unspoken agreement"
"his action is clear but his reason remains unstated"
Source: WordNet® (An amazing lexical database of English)
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