imponderable

imponderable has 4 senses in the JumbleFix dictionary. Letters: 12.

Definitions

• a.. Not ponderable; without sensible or appreciable weight; incapable of being weighed.
• n.. An imponderable substance or body; specifically, in the plural, a name formerly applied to heat, light, electricity, and magnetism, regarded as subtile fluids destitute of weight but in modern science little used.
• n.. a factor whose effects cannot be accurately assessed; "human behavior depends on many imponderables"
• a.. difficult or impossible to evaluate with precision; "such imponderable human factors as aesthetic sensibility"