Wry
/raɪ/ adjective mediumA wry remark or smile conveys clever, understated amusement, often tinged with irony or mild mockery.
He gave a wry smile before pointing out that the 'unbreakable' phone had already cracked on day one.
Memory Trick
Wry sounds like 'rye' bread, which has a distinctively twisted-looking crust - a wry expression carries that same twisted, knowing look.