Here is a working list of words that could be useful and are worth knowing and remembering. Or are just fun.
adonize—to make more attractive; to spruce up.
bespoke—made to order (especially clothing)
bromide—a trite or unoriginal remark, typically intended to soothe or placate
dilettante—a person who cultivates an area of interest, such as the arts, without real commitment or knowledge.
feculent—of or containing sediment, dirt, or waste material
floccinaucinihilipilification—estimating as worthless
florid—having a red or flushed complexion; elaborately or excessively intricate or complicated
fluvial—of or found in a river
heuristic—enabling a person to discover or learn something for themselves; hands-on
impugn—dispute the truth, validity, or honesty of; to call into question
milieu—a person’s social environment
myrmidon—one who unquestioningly follows orders
orphic—melodious, entrancing. mystical, occult.
perfunctory—carried out with a minimum of effort or reflection; done as a part of a routine or duty
pernicious—having a harmful effect, especially in a gradual or subtle way
pernoctate—to stay up all night, or to pass the night somewhere
philistine—hostile or indifferent to culture and the arts
phlegmatic—having an unemotional and stolidly calm disposition
picaresque—relating to an episodic style of fiction dealing with the adventures of a rough and dishonest but appealing hero
piebald—(of a horse) having irregular patches of two colors, typically black and white
polymath—a person of wide-ranging knowledge or learning.
recherche—rare, exotic, or obscure
scofflaw—a person who flouts the law, especially by failing to comply with a law that is difficult to enforce effectively
seditious—inciting or causing people to rebel against the authority of a state or monarch
senesce—to grow old or decay
specious—superficially plausible, but actually wrong; misleading in appearance, especially misleadingly attractive
stridulent—shrill; making a harsh grating sound
supplant—supersede and replace
tautologous—involving unnecessary repetition of an idea, especially in different words, for example, a good-looking beautiful woman.