sincerity; faithfulness
篤実な人柄で周囲の信頼を集めている。
He earns the trust of those around him with his sincere personality.
篤実な姿勢が長年の取引先との関係を支えた。
His faithful attitude sustained his long-standing business relationships.
篤実さこそがこの職業に最も求められる資質だ。
Sincerity is the quality most required in this profession.