Dilettante- A person who is interested in something like the arts, but does not really know a lot about it.
Recidivist- A criminal who repeats the offense
Plight- Suffering/Bad situation
Complicity- Participating in a crime
Arbor- Related to the earth or trees
Eulogy- Tribute (+) for someone who died
Felicity- Great happiness
Felicitous- Pleasing/lucky (+)
Elan- Feeling of inspiration or enthusiasm
Diffident- Shy/lacking self-confidence
Avail- To do something to no avail is to do something and have it not work out.
Futile- A futile attempt is to do something that does not work out.
Perspicacious- Shrewd/having insight