Synonyms of the word 
EVIDENTIAL → EVIDENTIARY - IMPORTANT - SIGNIFICANT
evidential
- adj. Of or providing evidence.
evidentiary
- adj. (law) Of or pertaining to evidence.
important
- adj. Having relevant and crucial value.
significant
- adj. Signifying something; carrying meaning.
- adj. Having a covert or hidden meaning.
- adj. Having a noticeable or major effect; notable.
- adj. Reasonably large in number or amount.
- adj. (statistics) Having a low probability of occurring by chance (for example, having high correlation and…
- n. That which has significance; a sign; a token; a symbol.
If you are interested in words, visit the following sites :
- wiktionary.org/evidential For complete definition of a word
- 1word.ws/evidential to play with words, suffixs, prefixs, etc.