bù dēng dà yǎ zhī táng
lit. not fit for elegant hall (of artwork)
not presentable; coarse; unrefined
不
bù
no; not so
登
dēng
to scale (a height)
大
dà
big; large; great
雅
yǎ
elegant
之
zhī
(possessive particle, literary equivalent of 的[de5])
堂
táng
(main) hall