Difficult GRE Words - Group 6

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

[Esc] (2)
v. to encroach, transpass

[Esc] (3)
v. start; initiate; induct into office by formal ceremony

[Esc] (4)
a. unable to be doubted; unquestionable

[Esc] (5)
a. inactive; lacking power to move; unable to move or act

[Esc] (6)
v. introduce into the body through a vein; undergo the process of infusion

[Esc] (7)
v. stimulate to an action, urge, goad on

[Esc] (8)
a. fearless, brave, bold

[Esc] (9)
ad. done with skill, but without special training or planning; instinctively

[Esc] (10)
v. turn upside down or inside out; reverse the position, order, or condition of