offhanded

1. Therefore, with the development of 3D laser imaging technique and its popularization in engineering geology, updating the technique of rock discontinuity investigation is offhanded and soon.
   因此，三维激光成像技术的引入，必将引发岩体结构特征参数测试技术革新性的发展。

adj

1. casually thoughtless or inconsiderate
   1. an offhand manner
   2. she treated most men with offhand contempt

   Synonym:    offhand

2. with little or no preparation or forethought
   1. his ad-lib comments showed poor judgment
   2. an extemporaneous piano recital
   3. an extemporary lecture
   4. an extempore skit
   5. an impromptu speech
   6. offhand excuses
   7. trying to sound offhanded and reassuring
   8. an off-the-cuff toast
   9. a few unrehearsed comments

   Synonym:    ad-libextemporaneousextemporaryextemporeimpromptuoffhandoff-the-cuffunrehearsed

adv

1. in a casually inconsiderate manner
   1. replied offhand, his mind a million miles away
   2. she threw him over offhandedly without even a Dear-John letter

   Synonym:    offhandoffhandedly

2. without previous thought or preparation
   1. couldn't give the figures offhand
   2. we decided offhand to go to Canada
   3. she had made these remarks offhandedly

   Synonym:    offhandoffhandedly