Definition of "twee"

Despite the fact that the designs were all a bit twee […] they stood out a mile in the market place at that time.

1999, Janet Foster, Docklands: Urban Change and Conflict in a Community in Transition, London, Philadelphia, Pa.: UCL Press, page 82

Forget the clichéd image of Brigadoon and shortbread tins, the dreadfully twee tartan tat and Celtic kitsch that, sadly, still exists in the 21st century, and is too often passed off as a genuine Highland experience.

2001, Alan Murphy, Scotland Highlands & Islands Handbook: The Travel Guide, Bath, Somerset: Footprint Handbooks, page 11

As always with Disney, there are moments when it all seems a bit twee, others when it is excessively PC.

2002, Peter Ellison, Essential Non-fiction, Dublin: Folens Publishers, page 40

I just wouldn’t have felt comfortable saying, "I am a duckbilled platypus, and this is how I find my shrimps." I think it would have been twee.

2005 September 8, Stephen S. Hall, quoting Richard Dawkins, “Darwin's Rottweiler: Sir Richard Dawkins: Evolution's fiercest champion, far too fierce”, in Discover‎, archived from the original on 1 January 2016

[Neil] Tennant's accent obviously has a lot to do with that, but the fact he's rapping is further masked by his twee, effeminate delivery.

2015 June 2, Kenneth Partridge, “With ‘West End Girls,’ Pet Shop Boys set a high standard for U.K. hip-hop”, in The A.V. Club‎, archived from the original on 6 September 2015