英汉词典

1. 忠诚的；忠心的；忠贞不渝的
    Someone who is loyal remains firm in their friendship or support for a person or thing.

loyal

    e.g. They had remained loyal to the president...
           他们始终对总统忠心耿耿。
    e.g. He'd always been such a loyal friend to us all.
           他一直是我们大家忠实的朋友。