PERVASION
Per*va"sion, n. Etym: [L. pervasio. See Pervade.]

Defn: The act of pervading, passing, or spreading through the whole extent of a thing. Boyle.

PERVASIVE
Per*va"sive, a.

Defn: Tending to pervade, or having power to spread throughout; of a pervading quality. "Civilization pervasive and general." M. Arnold.

PERVERSE
Per*verse", a. Etym: [L. perversus turned the wrong way, not right,
p.p. of pervertereto turn around, to overturn: cf. F. pervers. See
Pervert.]

1. Turned aside; hence, specifically, turned away from the right; willfully erring; wicked; perverted. The only righteous in a word perverse. Milton.

2. Obstinate in the wrong; stubborn; intractable; hence, wayward; vexing; contrary. To so perverse a sex all grace is vain. Dryden.

Syn. — Froward; untoward; wayward; stubborn; ungovernable; intractable; cross; petulant; vexatious. — Perverse, Froward. One who is froward is capricious, and reluctant to obey. One who is perverse has a settled obstinacy of will, and likes or dislikes by the rule of contradiction to the will of others.

PERVERSED
Per*versed", a.

Defn: Turned aside. [Obs.]