One
bloodsucker, free rider, freeloader, hanger-on
parasite
deceived by false beliefs
deluded
a feeling of dizziness caused especially by being in a very high place
vertigo
a sacred place
sanctum
She was ____________ and exhausted.
bedraggled
Humans are _______ creatures, meant to be awake during the day and to wind down at night.
diurnal
affectedly modest, reserved, or serious
demurely
The initial ___________ following their victory in the election has now subsided.
euphoria
He became _________, answered in monosyllables, gurgled, drank a great deal of whisky, and looked with hateful eyes at everyone.
listless
The criticism for her sister's singing was __________ by envy.
tainted
Cassie is the first bipedal robot to use machine learning to control a running ______ on outdoor terrain, showcasing a somewhat eerie ability to emulate humankind.
gait
For Gray, then, thought is a source of existential anxiety that serves only to ________ our souls.
perturb
Just be sure not to confuse peppermint oil, which is concentrated and thus far more potent, with peppermint extract, a ____________ mixture that contains approximately 20% peppermint oil.
diluted
A tree ______ fell on my car during the windstorm.
bough
the act of repeating over and over often without attention to meaning
rote
Over time, the pipes become __________ by rainwater and need to be replaced.
corroded
Biochar’s adsorption abilities depend on properties like its surface area, architecture, and ___________, for removing or immobilizing nutrient contaminants from water.
porosity
Besides getting us outside and paying attention to nature, the National Champion Trees Program also raises awareness of the rich __________ diversity across the country.
arboreal
Because this bank was shallow and prone to sand deposits, piers perpendicular to the bank were installed into deeper waters for vessels to _________.
moor
Two species, both carnivores to a greater or lesser extent, with different nutritional needs, could have a ____________ relationship.
commensal
Customers appreciate ________ workflows that produce faster results.
agile
Ordinarily, the absence of genetic diversity makes a population exceedingly vulnerable to the ________ of its environment.
vagaries
The best-selling cast iron grill has a durable ______ coating on the inside, which does away with the hassle of traditional seasoning.
enamel
Shadows ________ in every direction on glowing green grass.
splay
The store __________ the order—I received only half the books I paid for.
botched