Uncommon

onerous
[on-er-uhs]
burdensome, oppressive, or troublesome; causing hardship

melancholia
[mel-uhn-koh-lee-uh]
a mental condition characterized by great depression of spirits and gloomy forebodings

surmise
[ser-mahyz]
to think or infer without certain or strong evidence; conjecture; guess

penumbra
[pi-nuhm-bruh]
the partial or imperfect shadow outside the complete shadow of an opaque body, as a planet, where the light from the source of illumination is only partly cut off

panacea
[pan-uh-see-uh]
a remedy for all disease or ills

expurgate
[ek-sper-geyt ]
to amend by removing words, passages, etc., deemed offensive or objectionable

harbinger
[hahr-bin-jer ]
a person who goes ahead and makes known the approach of another; herald

imbroglio
[im-brohl-yoh]
a misunderstanding, disagreement, etc. of a complicated or bitter nature, as between persons or nations