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confound (v)

to confuse or astonish

eloquent (adj)

vividly expressive

indeterminate (adj)

not precisely known or determined

insuperable (adj)

impossible to overcome

lethargy (n)

prolonged sluggishness; unconsciousness

lucid (adj)

clear; mentally sound

pertinacity (n)

unyielding persistence or adherence

pervade (v)

to spread throughout

supposition (n)

something supposed; an assumption

voracity (n)

greed for food

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