WordNet sense 1 (location near or direction toward the left side; i.e. the side to the north when a person or object faces east):

left

WordNet sense 2 (that which is contrary to the principles of justice or law):

wrong, wrongfulness

WordNet sense 3 (of or belonging to neither the right nor the left politically or intellectually):

center

WordNet sense 4 (not correct; not in conformity with fact or truth):

incorrect

WordNet sense 5 (in an incorrect manner):

incorrectly, wrongly

WordNet sense 6 (falsify knowingly):

falsify

WordNet sense 7 (in an improper way):

improperly