how does speechless say in spanish

Question

what the maenings of speech and less in spanish... and the word together...

Answer 1

speechless : "Sin Palabras" or "Me quedé mudo"

Answer 2

Depending on context speech would usually be some form of Hablar or Decir : e.g. la habla.

Less in Spanish is usually menos, but in the context I believe that you want it, it will be sin (without).

sin decir más=without saying anything further

Do you mean "speechless" as in stunned (dumbfounded)? This new turn of events left him utterly speechless. (sin habla).