scarce
adj.缺乏的，不足的(sparse)
That bird has become scarce in this country.
那种鸟在这个国家已经很稀有了。
paucity
n.极小量
They closed the restaurant because the paucity of customers made it uneconomical to operate.
他们关了这家餐馆，因为客流量稀少，经营亏本。
tiny
adj.很少的，微小的(puny)
In towns that are near the sea, the tiny lanterns are placed into the water when the festival is over.
在靠近大海的城镇里，人们会在节日结束时，把小灯笼放在水里。
scant
adj.缺乏的，不足的
We were scant of breath after the lengthy climb.
长时间的运动后，我们感觉呼吸困难。
sparse
adj.稀少的，稀疏的(scanty)
inadequate
adj.不充分的(deficient, insufficient)
The amount of investment in the project was somewhat inadequate.
这个项目的投资多少有些不足。
scarcity
n.缺乏，不足
The scarcity of natural resources is detrimental to economic development in the country.
自然资源的稀缺不利于国家的经济发展。
rareness
n.稀薄
dearth
n.缺少，缺乏(scarcity, shortage)
slight
adj.轻微的，微小的
deficient
adj.缺乏的，不足的，不完善的
Supply of skilled workers is deficient.
技工的供应不足。
undersupplied
adj.对…供应不足的
lacking
adj.缺乏的，不足的
There is something lacking in his character.
他的性格有些欠缺。