Uncommon

obeisance
[oh-bey-suhns]
deference or homage

stymie
[stahy-mee]
to hinder, block, or thwart

petrichor
[pet-ri-kawr, pe-trahy-kawr]
a pleasant smell that frequently accompanies the first rain after a long period of warm, dry weather

alacrity
[uh-lak-ri-tee]
cheerful readiness, promptness, or willingness

ubiquitous
[yoo-bik-wi-tuhs]
existing or being everywhere, especially at the same time; omnipresent

marred
[mahr-d]
damaged or spoiled to a certain extent; rendered less perfect, attractive, useful, etc.; impair or spoil

foist
[foist]
to force upon or impose fraudulently or unjustifiably (usually followed by on or upon)

draconian
[drey-koh-nee-uhn]
excessively harsh and severe

infamy
[in-fuh-mee]
extremely bad reputation, public reproach, or strong condemnation as the result of a shameful, criminal, or outrageous act

detectorist
[dɪˈtɛktərɪst]
a person whose hobby is using a metal detector

censorious
[sen-sawr-ee-uhs]
severely critical; fault-finding; carping

maudlin
[mawd-lin]
tearfully or weakly emotional; foolishly sentimental

nadir
[ney-der]
the lowest point; point of greatest adversity or despair

penchant
[pen-chuhnt]
a strong inclination, taste, or liking for something

chthonic
[tha-nik]
of or relating to the deities, spirits, and other beings dwelling under the earth

loquacious
[loh-kwey-shuhs]
talking or tending to talk much or freely; talkative; chattering; babbling; garrulous

plashy
[plash-ee]
marshy; wet

hegira
[hi-jahy-ruh]
any flight or journey to a more desirable or congenial place

persiflage
[pur-suh-flahzh]
light and slightly contemptuous mockery or banter

obfuscate
[ob-fuh-skeyt, ob-fuhs-keyt]
to confuse, bewilder, or stupefy; to make obscure or unclear

astute
[uh-stoot]
having or showing an ability to accurately assess situations or people and turn this to one's advantage

girandole
[jir-uhn-dohl]
a brooch or earring consisting of a central ornament with usually three smaller ornaments hanging from it

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

redoubtable
[ri-dou-tuh-buhl]
that is to be feared; formidable