This is the 15393rd most frequent Russian word.
правдивыми
Truthful.
In this sentence, 'правдивыми' is used as a predicate adjective describing the subject 'рассказы' (the stories) and agrees in number, gender, and case exactly with the plural noun.
Рассказы о чудесах были правдивыми.
The stories about miracles were truthful.
Here, 'правдивыми' is used as an attribute related to the personal pronoun 'мы' (we), particularly specifying behavior or qualities of the subject.
Мы стараемся быть правдивыми в своих словах.
We try to be truthful in our words.
This usage illustrates 'правдивыми' as describing the quality of the words, used in the plural instrumental case to align with 'слова' (words).