Difficult GRE Words - Group 6

[Esc] (1)
a. impossible or difficult to perceive by the mind or senses

[Esc] (2)
v. beg persistently; ask for urgently or repeatedly; annoy

[Esc] (3)
a. beginning to exist or appear; in an early stage

[Esc] (4)
a. penetrating, clear, and sharp, as in operation or expression

[Esc] (5)
a. not consisting of matter, or not having material body; immaterial; insubstantial

[Esc] (6)
n. one who does not hold same religious beliefs as another

[Esc] (7)
a. very small; immeasurably or incalculably minute

[Esc] (8)
a. unfriendly; hostile; harmful; detrimental

[Esc] (9)
n. the condition of one who is unable to pay his debts as they fall due, or in the usual course of trade and business

[Esc] (10)
v. stimulate to an action, urge, goad on