Related formshalf-un·der·stood, adjectivenon·un·der·stood, adjectiveself-un·der·stood, adjectivewell-un·der·stood, adjective
Examples from the Web for well-understood
Nation-hood is at best an abstraction and, while the use of force is well-understood, rules limiting its use are not.
This critical moment would come within a well-understood sequence of events.
It was a well-understood thing in the family that the senior male Dale should have all the Dale property and all the Dale money.The Small House at Allington|Anthony Trollope
It is implied that these men had tacitly, or in some other well-understood way, accepted the first invitation.The Parables of Our Lord|William Arnot
They are emblematical of the character of the maidens, and have a well-understood language of their own, which is rhythmical.Lancashire Folk-lore|John Harland
As a well-understood public interest and sound reason decide in all matters, we have no occasion to become heated.Freeland|Theodor Hertzka
While all "the boys" felt a personal interest in the child, it was a well-understood fact that he belonged to Colonel Austin.A Little Dusky Hero|Harriot T, Comstock