Style dictates its conditions: a word that is appropriate in meaning cannot always fit into a story, document, or business message because of its speech coloring. “Prettier” is neutral with respect to the style of presentation, while “more beautiful” is an image rooted in poetry and folk speech.
You will have to pay attention even to the form of the degree of comparison for the adjective "beautiful" - simple and complex. Revolutions not always appropriate in a scientific language are perfectly combined with other styles.
More beautiful or more beautiful are words that are two variants of a simple form of comparative degree. They have many synonyms, and the context requires the use of special epithets, with different semantic nuances and nuances.
comparative
The comparative degree of adjectives has two forms - simple and complex. One is formed by means of an ending, and the second by means of the adverb “more” (or “less”). Thus, the options are: “more beautiful” (or “more beautiful”) and “more beautiful”.
The simple form is used in all speech styles - both in everyday conversations and in scientific articles. But a complex form (compound) is an attribute of book speech. For instance:
There is more beautiful evidence that the resulting vector is a zero vector.
Synonyms
Synonyms of the word “prettier”: “prettier”, ““ nicer ”,“ more wonderful ”,“ more elegant ”and dozens of others. Of course, any of them has its own semantic nuances, and not everyone will do if you need to find a definition for a person, a plant , building or deed. A synonym is not a complete analogue of a word, but a concept that is close in meaning.
The synonyms “picturesque”, “magnificent”, “pleasing to the eye”, “attractive”, “full of colors”, “colorful” are more suitable for a landscape.
Actions, actions also fall under the characteristics of "beautiful" and "more beautiful." Here are synonyms: "bold, outstanding, courageous, extraordinary."
The word "beautiful" is a wonderful synonym, it very animates the poetic image. Probably because it resembles folk speech in fairy tales, epics, songs, proverbs. The harsh saying - “they put more beautifully in a coffin” - speaks of a person’s bad, painful, exhausted face.
And the praise of “more beautiful than everyone else” and “more beautiful than rose” characterizes not only fairy-tale characters. Famous poets also have such epithets. For example, in Alexander Blok's play "The Rose and the Cross," Knight Bertrand says:
I would swear a rose
You are more beautiful than all roses ...
Note that the plot of the play was taken from chivalric novels. And the word "beautiful" in this context refers to the archetypes of consciousness associated with ancient genres in literature.
“More beautiful” and “more beautiful” are the synonyms closest in meaning, their various application is determined only by the style of speech.
One of the oldest synonyms of the word “beautiful” is “red”. And if native speakers of the Russian language hear the proverb “Not a hut is red in corners, but red in pies”, then they understand: we are talking about beauty and goodness, and not about a color palette.
Of course, we must remember that only in relation to color can the comparative degree of the adjective “red” - “redder” be used. But in the meaning of "beautiful" there is no such possibility.
Spoken style
Conversational style is not only spoken language. It includes private letters, notes, announcements (for which a strict form is not required).
Fiction and cinema would not have been possible without colloquial speech, which not only serves as a characterization of the character. It allows the author to speak in a lively, not too academic style.
Advertising gives both successful and unsuccessful examples of the use of colloquial vocabulary. We note in parentheses that the general public was amazed at the form of “vacuuming” in one of the commercials.
To speak in any situation, following only strict grammar rules, “high style”, is simply ridiculous. The language has such an abundance of colors and images that it makes no sense to limit it. But making gross mistakes is not recommended even in spoken language: for example, "prettier" is a completely unacceptable synonym.
Knowledge of the language tells where it is better to use "more beautiful", "more beautiful" or "more beautiful". Or just say, "Well, what a good thing!"
There is no land in the world more beautiful
Context and style are two very intelligent dictators. How wonderful Sergei Esenin sounds:
Tanya was good
There was no more beautiful in the village.
The phrase “There was no more beautiful house in the village” does not irritate anyone. Although in this case, to say “more beautiful” or “more beautiful” is not so important.
However, the comment - “There was no better goal this season” - will perhaps surprise you with an unexpected archaic word. Or: "The coast of the country is more beautiful and more diverse than the central part." The adjective "prettier" is also more appropriate here.
The word "beautiful" is often used in poems, songs about Russian open spaces, the motherland. This word is included in the name of contests of children's drawings dedicated to their native places, in poetic lines about favorite cities and villages.
At one time, the "Song of the Motherland" (1947) to the words of Sergei Alymov was very popular:
Where will you find the country in the world
More beautiful than my homeland?
All the ends of my land are in full bloom
Endless expanse of fields.
There are other examples. Recall the mental image in the poem "Vasily Terkin" by Alexander Twardowski:
Mother Earth is our dear,
In the days of trouble and in the days of victories
No you are brighter and more beautiful
And there is no cherished heart.
How to avoid mistakes?
Knowing in which context it is better to use “more beautiful” or “more beautiful”, as well as the semantic nuances of the numerous synonyms of these words, it is easy to avoid stylistic absurdities. And the word "prettier", which miraculously clambered onto pages with synonyms, is such a gross error that it would be strange to discuss it.
Another important point associated with the word "more beautiful" is in oral speech. Do not forget that it is pronounced with emphasis on the second syllable.