Bona fide
bona fide /ˌbəʊ.nəˈfaɪ.di/(adj)
Bona fide definition
genuine, authentic, true, real, valid, sincere and honest, legitimate, legal, (antonym: bogus)
Example
Any bona fide offers of help would be appreciated.
The true bona fide prayer for rain always carries an umbrella with him/herself.
Today, bona fide love is scarce and many prefer marrying into money.