Offhand, I can't think of his name.
An offhand suggestion.
She gave an offhand speech.
He doesn't realise how hurtful his offhand remarks can be.
She was quite offhand with me yesterday.
One of the ladies who worked at the courthouse made an offhand comment about the popular Lucky Pup Mine.
Her offhand treatment of the new empress, Marie Louise, in 1810 led to her removal from court.
Natasha suddenly shrank into herself and involuntarily assumed an offhand air which alienated Princess Mary still more.
Then he took his place in the first row of the stalls and sat down beside Dolokhov, nudging with his elbow in a friendly and offhand way that Dolokhov whom others treated so fawningly.
In this situation, the woman made an offhand tweet suggesting that the apartment she lived in had mold in it.