Definition of "naff"

She was an ordinary woman in her dress style; she didn't wear a leather bodice or naff over-knee plastic spiky-heeled boots.

1998, Robert Llewellyn, The Man on Platform Five, London: Hodder & Stoughton, page 291

I mean ten years ago a bit of charlie was for pop stars or a celebrities birthday bash. It was demonized by Daily Mail Readers getting drunk in naff wine bars.

2004, J. J. Connolly, Layer Cake, spoken by XXXX (Daniel Craig)

Remember, “tacky” means “cheap or glitzy”, whereas “naff” is about stylistic shortcomings which are horrifyingly average and pathetically ordinary. The Jersey Shore is tacky, but The Bachelor is naff.

2012, Simon Doonan, Gay men don't get fat, New York: Blue Rider Press, page 206

A mere seven years after her tragic death, isn’t it grim and tasteless to send her hologram off on some naff tour?

2019 February 24, Barbara Ellen, “Amy Winehouse could belt out a tune – her naff hologram can’t”, in The Guardian‎

Note that last phrase: what actually emerged was a virtual-reality platform called Horizon Worlds, accessible only via naff and clunky Oculus headsets (think an uncomfortable version of Zoom) […]

2023 May 13, John Naughton, “A moment’s silence, please, for the death of Mark Zuckerberg’s metaverse”, in The Observer‎

The omie was a veritable donkey beneath the waistband, darlings. A donkey! No wonder your boss-palone is so smitten. I've seen my share, dollies, but this old omiepalone was shaken to the core. Such a terrible waste on a naff bloke.

2004, Pip Granger, Trouble In Paradise