The 71-year-old beauty has been married four times - for five years to agent James Welch until 1964, to producer Patrick Curtis for five years until 1972, and in 1980 she began a 10-year marriage to Andre Weinfeld.
Welch wed her fourth husband, Richard Palmer, in 1999 and the pair have been separated since 2008 - but the Hollywood star is adamant she won't become a bride again.
She tells Britain's Elle magazine, "I'm just not suited for it any longer. I love men and I love their company, but I am too independent and self-motivated.
"I'm willing to date but, quite frankly, there is a diminishing group of eligible people at my age. I don't mind the traditional roles of male and female but, as you can tell, I am a very strong minded woman. I'm sure I would be a challenge for an awful lot of men. They wouldn't want to deal with it or, if they would like to deal with it, maybe I'm just not that interested."