Uncommon

limpid
[lim-pid]
clear, transparent, or pellucid (as water, crystal, or air)

titter
[tit-er ]
to laugh in a restrained, self-conscious, or affected way, as from nervousness or in ill-suppressed amusement

underpin
[uhn-der-pin]
to prop up or support from below; strengthen, as by reinforcing a foundation

malfeasance
[mal-fee-zuhns]
the performance by a public official of an act that is legally unjustified, harmful, or contrary to law; wrongdoing (used especially regarding an act in violation of a public trust)

undulating
[uhn-juh-leyt-ing]
having a sinuous or wavelike shape or motion

vespertine
[ves-per-tin]
of, relating to, or occurring in the evening

forestall
[fohr-stawl]
to prevent, hinder, or thwart by action in advance

haboob
[huh-boob]
a thick dust storm or sandstorm that blows in the deserts of North Africa and Arabia or on the plains of India

shrewd
[shrood]
having or showing astute or sharp judgment in practical matters, sometimes at the cost of moral compromise

prolixity
[proh-lik-si-tee]
a tendency to speak or write at great or tedious length

swarthy
[swawr-thee]
dark (of skin color, complexion, etc.)

droke
[drohk]
a valley with steeply sloping sides

mediate
[mee-dee-eyt]
to act between parties to effect an agreement, compromise, reconciliation, etc.

bovine
[boh-vahyn]
of or relating to the subfamily Bovinae, which includes cattle, buffalo, and kudus

wizened
[wiz-uhnd]
withered; shriveled

satiate
[sey-shee-eyt]
to supply something with excess, such as disgust or weary

court
[kawrt]
to seek the affections of; woo

ramify
[ram-uh-fahy]
to divide or spread out into branches or branchlike parts; extend into subdivisions

neutralize
[noo-truh-lahyz]
to make (something) ineffective; counteract; nullify

supplant
[suh-plant]
to take the place of (another), as through force, scheming, strategy, or the like

paean
[pee-uhn]
a song of praise, joy, or triumph

apprehensive
[ap-ri-hen-siv]
uneasy or fearful about something that might happen

sacrosanct
[sak-roh-sangkt]
above or beyond criticism, change, or interference

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