Synonyms of evidential

3 Syllables
giveaway, augural, diagnostic, indicial, ominous, symbolic, telltale, auspicious, prognostic
4 Syllables
testimonial, symptomatic, denotive, expressive, inauspicious, testatory, situational, suggestive, evincive, significant, emblematic
5 Syllables
apocalyptic, connotative, designative, demonstrative, indicatory, indicative, characteristic, denotative
6 Syllables
significatory