坦誠

taan2 sing4

frank, candid

誠篤

sing4 duk1

sincere; honest

誠意

sing4 ji3

sincerity; good faith

誠懇

sing4 han2

sincere; honest; cordial; hearty

誠心誠意

sing4 sam1 sing4 ji3

eager and sincere

李嘉誠

lei5 gaa1 sing4

Lee Ka-shing (richest person of Chinese descent in the world)

篤誠

duk1 sing4

sincere and earnest

陳光誠

can4 gwong1 sing4

Chen Guangchen, a chinese civil rights activist who worked on human rights issue

忠誠

zung1 sing4

[1] devoted; loyal [2] loyalty; fidelity [3] (placename) Chung Shing

虔誠

kin4 sing4

pious; devout; sincere

誠心

sing4 sam1

devout

誠摯

sing4 zi3

sincerely; with sincerity

真誠

zan1 sing4

sincere

誠徵

sing4 zing1

Wanted; looking for (usually to hire someone)

誠信

sing4 seon3

genuine; honest; in good faith

誠實

sing4 sat6

honest; honourable; truthful; honesty

不誠實

bat1 sing4 sat6

dishonest; duplicity

熱誠

jit6 sing4

eager; enthusiastic; zeal

開心見誠

hoi1 sam1 gin3 sing4

nothing to hide; be frank (slang)