Uncommon

insufflate
[in-suhf-leyt]
to blow or breathe (something) in

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

desideratum
[dih-sid-uh-rey-tuhm]
something wanted or needed

alembic
[uh-lem-bik]
anything that transforms, purifies, or refines

inimical
[ih-nim-i-kuhl]
adverse in tendency or effect; unfavorable; harmful

nimiety
[ni-mahy-i-tee]
excess; overabundance

clinometer
[klahy-nom-i-ter]
an instrument used for measuring the angle or elevation of slopes

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

orotund
[awr-uh-tuhnd]
(of the voice or speech) characterized by strength, fullness, richness, and clearness

feckless
[fek-lis]
lacking initiative or strength of character; irresponsible

matutinal
[muh-toot-n-l]
pertaining to or occurring in the morning; early in the day

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

capricious
[kuh-prish-uhs]
given to sudden and unaccountable changes of mood or behavior

obstreperous
[uhb-strep-er-uhs]
noisy and difficult to control

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

claptrap
[klap-trap]
absurd or nonsensical talk or ideas

ambrosial
[am-broh-zhuhl]
exceptionally pleasing to taste or smell; especially delicious or fragrant

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

roister
[roi-ster]
enjoy oneself or celebrate in a noisy or boisterous way

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

plashy
[plash-ee]
marshy; wet

tessellate
[tes-uh-leyt]
to form small squares or blocks, as floors or pavements; form or arrange in a checkered or mosaic pattern

succedaneum
[suhk-si-dey-nee-uhm]
a substitute

inchoate
[in-koh-it]
not organized; lacking order