The meaning of BEAUTIFUL is having qualities of beauty : exciting aesthetic pleasure.

BEAUTIFUL definition: having beauty; possessing qualities that give great pleasure or satisfaction to see, hear, think about, etc.; delighting the senses or mind. See examples of beautiful used in a …

(Definition of beautiful from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

If you say that someone is beautiful, you are implying that they are nicer to look at than if you said they were attractive, good-looking, handsome, or pretty. If you say that someone is gorgeous or stunning, …