any loyal and steadfast following
"The faithful gathered in large numbers to support their leader during the difficult times."
a group of people who adhere to a common faith and habitually attend a given church
"The faithful gathered in the cathedral every Sunday to listen to the sermon."
The practicing members of a religion or followers of a cause.
"The faithful gathered in the square to pray for rain after weeks of drought."
In plain English: A faithful person is someone who stays loyal and true to their friends, family, or beliefs even when things get hard.
"The faithful gathered in church to hear the sermon on Sundays."
steadfast in affection or allegiance
"years of faithful service"
"faithful employees"
"we do not doubt that England has a faithful patriot in the Lord Chancellor"
not having sexual relations with anyone except your husband or wife, or your boyfriend or girlfriend
"he remained faithful to his wife"
Loyal; adhering firmly to person or cause.
"The faithful soldier stood guard by his commander's side through every storm and battle."
In plain English: Faithful means being loyal and true to someone or something over time without changing your mind.
"She has been a faithful friend to me through all my difficult times."
Usage: Use faithful as an adjective meaning loyal and steadfast, such as in the phrase "a faithful friend." Do not confuse it with faithless, which describes someone who is disloyal or untrustworthy.
The word faithful comes from Middle English, where it was formed by combining the word faith with the suffix -ful. It originally described someone who possessed or showed great faith.