The opposite of fashionable is unfashionable.
Other words that mean the opposite of fashionable or trendy:
out of date, outmoded, out of style, passé, old-fashioned, dowdy
Plain
Unfashionable you just add a prefix un, meaning not
Unfashionable
That is the correct spelling of the adverb "fashionably" (stylishly, or in a current manner, e.g. fashionably late).
yes
The fashionable elite
An antonym would be: Hippie.
Unfashionable you just add a prefix un, meaning not
The dictionary definition of a "geek" is an unfashionable or socially inept person. So that opposite of a "geek" must be a fashionable or socially confident person.
The superlative of fashionable is "most fashionable."
Yes, they are quite fashionable. I am sure your girlfriend will be pleased. Just make sure yellow is a color that looks good on her. For instance, if she is tan, then get a bold color for her. If it is the opposite, then go for the pastels.
most fashionable
I am fashionable.
yes very fashionable.
That is a very fashionable hat!
They're not fashionable now.
Fashionable Lectures was created in 1872.
Fashionable Nonsense was created in 1997.