influential, powerful, effective

powerful, strong, great

powerful, influential

remarkable, great, splendid, lofty, immense, powerful, authoritative, skillful

strong, powerful, bully, someone who uses/abuses power

antidote (for poison)

to disorder, confuse, spoil, (fig.) poison

antidote (for poison)

to penetrate (as in poison getting into an organism etc.)

arsenic, poison