Verb

(elud)

To evade, or escape from someone or something, especially by using cunning or skill.

* 1748 . David Hume. Enquiries concerning the human understanding and concerning the principles of moral. London: Oxford University Press, 1973. § 26.

Thus the observation of human blindness and weakness is the result of all philosophy, and meets us at every turn, in spite of our endeavours to elude or avoid it.

To shake off a pursuer; to give someone the slip.

* {{quote-news

, year=2012 , date=December 29 , author=Paul Doyle , title=Arsenal's Theo Walcott hits hat-trick in thrilling victory over Newcastle , work=The Guardian citation , page= , passage=Podolski gave Walcott a chance to further embellish Arsenal's first-half performance when he eluded James Perch and slipped the ball through to the striker.}}

To escape understanding of; to be incomprehensible to.

Verb

(frustrat)

To disappoint or defeat; to vex by depriving of something expected or desired.

It frustrates me to do all this work and then lose it all.

To hinder or thwart.

My clumsy fingers frustrate my typing efforts.

To cause stress or panic

This test frustrates me because if I fail, it'll destroy my grade.