赤忱

chìchén
  1. (literary) absolutely sincere
  2. (literary) sincere wish; utmost sincerity
  3. absolutely sincere
  4. sincere wish; utmost sincerity

Wiktionary

Entry Composition

1 赤 chì
  1. red
  2. scarlet
  3. bare
  4. naked
2 忱 chén
  1. sincerity
  2. honesty