Princeton's WordNet

1. ad-lib, extemporaneous, extemporary, extempore, impromptu, offhand, offhanded, off-the-cuff, unrehearsed(adj)

   with little or no preparation or forethought

   "his ad-lib comments showed poor judgment"; "an extemporaneous piano recital"; "an extemporary lecture"; "an extempore skit"; "an impromptu speech"; "offhand excuses"; "trying to sound offhanded and reassuring"; "an off-the-cuff toast"; "a few unrehearsed comments"

2. offhand, offhanded(adverb)

   casually thoughtless or inconsiderate

   "an offhand manner"; "she treated most men with offhand contempt"

3. offhand, offhanded, offhandedly(adverb)

   without previous thought or preparation

   "couldn't give the figures offhand"; "we decided offhand to go to Canada"; "she had made these remarks offhandedly"

4. offhand, offhanded, offhandedly(adverb)

   in a casually inconsiderate manner

   "replied offhand, his mind a million miles away"; "she threw him over offhandedly without even a Dear-John letter"

Kernerman English Learner's Dictionary

1. offhand(adverb)ˈɔfˈhænd, ˈɒf-

   immediately, without taking time to find out

   Does anyone know offhand where there's a good bookstore around here?; "What time does the flight get in?" "I couldn't tell you offhand."

2. offhand(adjective)ˈɔfˈhænd, ˈɒf-

   rude and not sensitive to how others may feel

   offhand remarks/comments

Wiktionary

1. offhand(Adverb)

   right away, immediately, without thinking about it

2. offhand(Adverb)

   in an offhand manner

3. offhand(Adjective)

   without planning or thinking ahead

   She gave an offhand speech.

4. offhand(Adjective)

   careless; without sufficient thought or consideration

   He doesn't realise how hurtful his offhand remarks can be.

5. offhand(Adjective)

   curt, abrupt, unfriendly

   She was quite offhand with me yesterday.

Origin: From *, from ofhende, equivalent to . Cognate with afhendur. Compare onhand.

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