Not codified, not part of the code of law, not stated as part of a systematic statement of principles.(adjective)
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Use "uncodified" in a sentence
"The verdict depended on when crimes against humanity became part of the uncodified realm of customary international law, thus prohibiting such egregious conduct by all nations and their leaders."
"Besides, many of Europe's written constitutions are in fact modeled on the uncodified British version."
"Ripa wrote the first version of his manual in the late 16th century, but the idea of coupling a time-measuring device to a parrot to signify the well-regulated art of Eloquence may have already been 'in the air,' in uncodified form, in the 15th century."