The men, Dorothy thought, were about as old as Uncle Henry, for two of them had beards. But the little woman was doubtless much older. Her face was covered with wrinkles, her hair was nearly white, and she walked rather stiffly.
If you say that something is doubtless the case, you mean that you think it is probably or almost certainly the case. He will doubtless try and persuade his colleagues to change their minds. used when saying that something is almost certain to happen or be true