tried and true (adj.)

• acknowledged
• blase
• committed
• confirmed
• constant
• conventional
• cosmopolitan
• customary
• dedicated
• dependable
• devoted
• established
• experienced
• faithful
• fast
• fixed
• hallowed
• heroic
• hoary
• immemorial
• incorruptible
• inveterate
• inviolable
• knowing
• legendary
• long-standing
• mature
• matured
• mythological
• old
• oral
• practiced
• prescriptive
• proved
• proven
• received
• recognized
• reliable
• responsible
• ripe
• ripened
• rooted
• sagacious
• seasoned
• secure
• sophisticated
• staunch
• steadfast
• straight
• sure
• tested
• time-honored
• traditional
• tried
• true
• true-blue
• trustworthy
• trusty
• understood
• unwritten
• venerable
• verified
• veteran
• worldly
• worldly-wise
• worshipful