landmark - important event or achievement or matter⏎
effective - productive, successful, forceful, advisable⏎
flaw - mistake, imperfection, weakness⏎
legislation - law, regulation⏎
firm - business, company⏎
mean - average, middle⏎
expert - ace, skilled, proficient⏎
formulate - create, prepare, arrange⏎
inspect - check, scan, look closely at⏎
jumpy - nervous, anxious, agitated⏎