unsound

adj.

不健全的；不稳固的；无根据的；腐烂的

adv.

不健全地；情况不佳地；虚弱地；有缺点地

1. In theory as well as in practice, the idea is unsound.
   这个主意在理论上和实践上都站不住脚。
2. Do not listen to unsound advice.
   别去听无根据的劝告。
3. I am afraid that it is an unsound investment.
   我担心这项投资靠不住。

Is research into ethnicity and health racist, unsound, or important science?
Associations between hoof lesions and locomotion score in 1098 unsound dairy cows.
Automatic generation of program specifications
Tracking pointers with path and context sensitivity for bug detection in C programs
Refinement types for Haskell
The Fallacy of the Fiscal Theory of the Price Level
Generic Wrappers
Breeding soundness evaluation of extensively managed bulls in Costa Rica
DYSURIA IN OLD AGE
Effect of Knots on Horizontal Shear Strength in Southern Yellow Pine