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well–documented

well–documented /ˌwɛlˈdɑːkjəˌmɛntəd/ adjective
well–documented
/ˌwɛlˈdɑːkjəˌmɛntəd/
adjective
Britannica Dictionary definition of WELL–DOCUMENTED
[more well–documented; most well–documented]
used to describe something that is known about or known to be true because there are many documents that describe it, prove it, etc.