Adjective

Cosmic strings are second only to black holes in the astrophysicist's pantheon of weird objects. They are narrow, ultradense filaments formed during a phase transition—called inflation—within the first microsecond of cosmic history. — Steve Nadis , Astronomy ,

If you looked at them closely you realized they were carved with weird , pagan creatures, more like hobgoblins than men, half hidden among trees and leaves—here acanthus and there what looked like a palm tree. — Kate Atkinson , Case Histories ,

As an extended fictional device allegory is used mainly in didactic, satirical fables, such as Gulliver's Travels, Animal Farm and Erewhon. In these masterpieces a surface realism of presentation gives the fantastic events a kind of weird plausibility … — David Lodge , The Art of Fiction ,

My little brother acts weird sometimes.

I heard a weird noise.

That's weird—I put my book down right here just a few minutes ago and now it's gone.