sincere

英[sɪn'sɪə] 美[sɪn'sɪr]

1. open and genuine; not deceitful;: "he was a good man, decent and sincere"; "felt sincere regret that they were leaving"; "sincere friendship"

2. characterized by a firm and humorless belief in the validity of your opinions;: "both sides were deeply in earnest, even passionate"; "an entirely sincere and cruel tyrant"; "a film with a solemn social message"