slightly sour or acidic, not strongly so, often describing a mild tanginess
sauer
extremely self-assertive in a way that annoys others
aufdringlich
sharing a common border or touching at some point
zusammenhängend
talking a great deal, particularly about trivial things
geschwätzig
extremely evil or wicked, typically involving illegal or immoral actions
nefarious
honorably retired from assigned duties and retaining your title along with the additional title `emeritus' as in `professor emeritus'
emeritiert
characterized by excessive ingratiation or flattery, often in a way that seems insincere or manipulative
schmeichlerisch
(of animals and plants) found and developed only in a particular place and not been brought from elsewhere
einheimisch
done or happening naturally, without any prior thought or planning
spontan