Words similar to well-established

Example sentences for: well-established

How can you use “well-established” in a sentence? Here are some example sentences to help you improve your vocabulary:

Due to the limited resource of the fresh tumor samples, we turned to the cell culture system and used the well-established rhabdomyosarcoma cell lines.
Originally, the American concern with the well-established name Minneapolis Honeywell joined with Groupe Bull and NEC to form Honeywell Bull , not the most attractive of names.
To study the molecular mechanisms underlying capillary morphogenesis in ECs, we used a well-established in vitro model of angiogenesis.
Guess-work on word origins is not and probably cannot be science, since the matter is not involved with well-established general theories.
I think if you went around and asked any number of reasonably well-established buyout firms, they approach it the same way.