Synonyms of 'anecdotal'
She had proved to be an unreliable witness and had lied to police.
If you say that someone is untrustworthy, you think they are unreliable and cannot be trusted.
His opponents still say he's a fundamentally untrustworthy figure.
Thesaurus for anecdotal from the Collins English Thesaurus
Anecdotal evidence is based on individual accounts , rather than on reliable research or statistics , and so may not be valid .