noun
1A person who causes or is involved with agitation; = "agitator".
2Something that causes agitation; = "agitator". Usually figurative rare.
adjective
rareRelating to, causing, or engaged in agitation.
Origin
Mid 17th century (in an earlier sense). From classical Latin agitant-, agitāns, present participle of agitāre agitate.
Are You Learning English? Here Are Our Top English Tips