Uncommon

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

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

prosaic
[proh-zey-ik]
commonplace or dull; matter-of-fact or unimaginative

perfidious
[per-fid-ee-uhs]
deliberately faithless; treacherous; deceitful

guileless
[gahyl-lis]
free from guile; sincere; honest; straightforward; frank

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

valorous
[val-er-uhs]
showing great courage in the face of danger, especially in battle

adversary
[ad-ver-ser-ee]
one's opponent in a contest, conflict, or dispute

libertine
[lib-er-teen, lib-er-tin]
a person, especially a man, who behaves without moral principles or a sense of responsibility, especially in sexual matters; a person who rejects accepted opinions in matters of religion; a freethinker

impecunious
[im-pi-kyoo-nee-uhs]
having little or no money; penniless; poor

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

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

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

perdure
[per-door]
remain in existence throughout a substantial period of time; endure

palfrey
[pawl-free]
a docile horse used for ordinary riding, especially by women

cognizance
[kog-nuh-zuhns]
awareness, realization, or knowledge; notice; perception

incipient
[in-sip-ee-uhnt]
beginning to exist or appear; in an initial stage

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

plashy
[plash-ee]
marshy; wet

cravat
[kruh-vat]
a short, wide strip of fabric worn by men around the neck and tucked inside an open-necked shirt

perspicacious
[pur-spi-key-shuhs]
having a ready insight into and understanding of things

hebetude
[heb-i-tood]
the state of being dull; lethargy

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

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