imponderable

English Thesaurus

1. a factor whose effects cannot be accurately assessed (noun.cognition)

hypernym	:	influence,
definition	:	a cognitive factor that tends to have an effect on what you do (noun.cognition)

hyponym	:	leaven, leavening,
definition	:	an influence that works subtly to lighten or modify something (noun.cognition)

2. difficult or impossible to evaluate with precision (adj.all)

antonym	:	ponderable,
definition	:	capable of being weighed or considered (adj.all)

antonym	:	ponderable,
definition	:	capable of being weighed or considered (adj.all)