What is "out of fashion"

Old-fashioned \Old`-fash"ioned\, a. Formed according to old or obsolete fashion or pattern; belonging to or characteristic of times past; adhering to old customs, styles, or ideas; as, an old-fashioned dress, girl; old-fashioned wire-rimmed glasses. ``Old-fashioned men of wit.''
--Addison.

This old-fashioned, quaint abode.
--Longfellow.

2. Unacceptable or suboptimum because of having been superseded by something more recent; outmoded[2]; out-of-date. [Narrower terms: old-fashioned, out of fashion(predicate), out of style(predicate), passe, passee.]

Syn: antique, old-hat(predicate), outmoded, out-of-date.

3. Unfashionably out of date; out of style. [Narrower terms: unfashionable (vs. fashionable)]

Syn: demode, out of fashion(predicate), out of style(predicate), passe, passee.

a. unfashionable, not in fashion.