Definition of ninetyish in US English:

ninetyish

adjective

  • 1Of, belonging to, or characteristic of the 1890s; resembling or recalling the fashions, etc., of that period.

  • 2Of about ninety (in age, measurement, etc.).

Origin

Early 20th century; earliest use found in The Westminster Gazette. From ninety or ninety + -ish.

Pronunciation

ninetyish

/ˈnʌɪntɪɪʃ/