深不见底

so deep one cannot see to the bottom / limitless

old variant of 深[shen1]

deep / depth / deeply / (of a color) dark / deep / rich

deep (lit. and fig.)

no; not so / (bound form) not; un-

not to see / not to meet / to have disappeared / to be missing

to see / to meet / to appear (to be sth) / to interview / opinion / view

to appear / also written 現|现[xian4]

(equivalent to 的 as possessive particle)

background / bottom / base / end (of the month, year etc) / remnants / (math.) radix / base