invincible

Unable to be conquered (syn: invulnerable; ant: vulnerable)

provincial

Limited in knowledge of the world; narrow-minded (ant: sophisticated)

evince

To establish; to reflect the truth of

conducive

Supportive; encouraging; helping to bring about (syn: helpful, favorable)

induce

To lead towards some action (syn: persuade; ant: discourage)

deduce

To draw a conclusion from fact; to infer (syn: conclude)

protracted

Extended in time; prolonged (syn: lingering; ant: brief)

intractable

Stubborn; obstinate; hard to move forward (syn: immovable; ant: malleable)

retract

To draw back; withdraw (syn: repeal)