Positive antonym for trendy in fashion or overall personal appearance? [duplicate]

How do you describe someone's fashion sense in a positive way when it is the opposite of 'trendy'? By opposite of trendy I mean that it may still be considered to 'look good' (even though this is subjective), but not popular (many may not like it), not contemporary (it may borrow from old fashioned styles) and not generally in style (but unique and individual). A good example of this could be any of the many alternative fashions, however the extra challenge here is if you want to describe not based on labels of pre-existing alterntaive fashions, but just to emphasize that it's not trendy.

This may come down to providing a more detailed description, but I thought I would try to see if there is a more concise way to describe this.

Solution 1:

"Alternative [or 'alt']," "unique," "own," and many synonyms (and related words) of these are all applicable.

"Alternative" (which you used in your question) is defined as:

Relating to behavior that is considered unconventional and is often seen as a challenge to traditional norms. [Lexico]

"Unique" is defined as:

Particularly remarkable, special, or unusual. [Lexico]

"Own" creates a tautology, which puts an emphasis on that the style is hers, not anyone else's. It is defined as:

Particular to the person or thing mentioned; individual. [Lexico]

Some potentially applicable synonyms (and a few that are related, but not synonyms) of these words are:

Unonventional, unorthodox, quirky, quaint, whimsical, zany, etc...