She wears old-fashioned clothes.
She wears clothes that were fashionable a long time ago.
She wears unfashionable clothes.
She wears clothes that were never fashionable.
The clothes she wears are out of fashion.
She wears clothes that were fashionable when she bought them.
She wears outdated clothes.
She wears clothes that were suitable when she bought them but no longer are.
That last one sounds a little awkward. I don't know how clothes could become unsuitable except by becoming unfashionable (they could be no longer appropriate for the age or maturity of the wearer, but that isn't what "outdated" refers to) but the word makes more sense when applied to a subject that has an object measure of suitability. For example, a medical treatment (or other technical product or service) that was cutting edge in 1980 might be "outdated" now.
1. Did "long time no see"
arrive in U.S. English from forms of pidgin English
spoken separately by both some Native Americans
and some Chinese immigrants?
The earliest recorded examples are from native Americans, but it's plausible it was used in other types of pidgin English at the same time.
2. When did this
turn of phrase first gain the recorded notice of an
American English-speaking author?
It has been recorded by American English-speaking writers in 1900. The author Raymond Chandler used it in a 1939 newspaper and 1940 book.
3. When did the phrase cross over into use by native U.S.
English speakers among themselves?
Chandler presumably helped popularise it with detective stories and film noir of the early forties.
The OED says it's a "Colloq. phr. (orig. U.S.) long time no see, a joc. imitation of broken English, used as a greeting
after prolonged separation."
Their earliest quotation is 1900 from a native American:
1900 W. F. Drannan Thirty-one Years on Plains
(1901) xxxvii. 515 When we rode up to him [sc.
an American Indian] he said: ‘Good mornin. Long
time no see you.’
Their next quotation of 1939 shows it was fully naturalised:
1939 R. Chandler in Sat. Evening Post 14 Oct. 72/4
Hi, Tony. Long time no see.
Their next is also from Chandler, in 1940's Farewell, my Lovely.
Best Answer
Ngram The Stars and Stripes looks the more common.