9th Grade Vocabulary List
Week 1
Abridge – to shorten
Abstemious – sparing in the use of food or drink
Abhor – to loathe or detest
Aesthetic – pertaining to beauty
Ambiguous – unclear, having more than one meaning
Amorphous – having no shape
Apathy – lack of interest or caring
Conflagration – widespread fire
Conventional – traditional, mundane, ordinary
Detrimental – causing damage
or harm
Week 2
Deliberate – adj. Intentional, well thought out
Diversity – the state of being different or having different
elements
Elusive – cleverly avoiding or escaping
Erratic – unpredictably eccentric
Esoteric – known only by a select few
Exacerbate – to make worse
Exemplary – serving as an example, commendable
Extraneous – not pertinent or relevant
Hiatus – a break or lapse in continuity
Hoard – to accumulate or stash away
Week 3
Implausible – not possible,
not imaginable
Impudence – bold disrespect
or rudeness
Incorrigible - not capable
of being reformed
Indomitable – unable to be
subdued or overcome
Ingenuity – cleverness, originality
Innate – existing in a person
since birth; part of the character
something
Innocuous – causing or intending
little or no harm
Lampoon – sharp satire
Levity – lightness; lacking
seriousness
Lurid – gruesome, melodramatic,
shocking
Week 4
Mediocrity – ordinariness,
lack of distinction
Miser – one who saves greedily
Mitigate – to make less severe
Morose – gloomy; ill-tempered
Mundane – ordinary or commonplace
Obliterate – to wipe out,
remove all traces
Parochial – having narrow
scope
Paucity – small amount or
number
Penchant – a strong taste
or liking
Precarious – unstable, insecure
Week 5
Premonition – a feeling that
something is about to happen
Prodigal – wasteful
Promontory – a high point
of land projecting into the sea
Quibble – v. to make a minor
objection
- a small objection
Rectify – to fix, correct
Reminiscence – a story of
past experiences
Repertoire – supply of songs,
stories, skills or devices
Reticent – untalkative, shy,
reluctant to speak
Satiate – to satisfy fully
Slothful – lazy
Week 6
Solidarity – fellowship between
members of a group
Spendthrift – a person who
spends money wastefully
Stoic – not affected by passion
or feeling
Succinct – brief, concise
Succumb – to give way to
superior force
Superfluous – unnecessary
Taciturn – being of few words
Tantamount – equivalent in
effect or meaning
Tirade – a long, harsh, often
abusive speech
Torpid – without energy,
sluggish
Week 7
Transcendent – going beyond
known limits
Trite – overused, lacking
freshness
Vociferous – loud
Whimsical – eccentric; unpredictable
Wily – artful, cunning, deceitful,
shy
Cynicism – the belief that
all human action is motivated by
Exploit – to take advantage
of; to use selfishly
Indelible – incapable of
being erased
Infallible – unable to be
proven wrong
Inferred – concluded by reasoning
Week 8
Injurious – causing damage
or loss
Jargon – words used by people
in a particular field of work
Lamentation – an expression
of sorrow or deep regret
Lofty – having great height
or a stately manner
Magnate – a person of great
influence in a particular field
Methodical – orderly, having
a set system
Meticulous – very careful,
attentive to details
Monotonous – boring; unvarying
in tone or content
Mosaic – picture made of
really small pieces of glass
Negate – to destroy the validity
of something
Week 9
Obscure – not known; difficult to understand
Objective – not affected by personal feelings
Opaque – not transparent; hard to understand
Paradox – something that seems to contradict itself
Pastiche – piece of music or writing or art that
combines several different styles
Patent – obvious; readily visible
Phenomena – occurrences, facts, or observable
Philanthropist – someone who gives to worth causes
Pious – having reverence for a god
Plateau – a condition of neither growth nor decline
Week 10
Preclude – to make impossible
Predecessor – a person who
precedes another in an
or position
Presumptuous – bold to the
point of rudeness
Prevailing – generally accepted,
having superior power
Prevalent – in general use
or acceptance
Prominent – standing out,
important
Provincial – having a narrow
scope
Provoke – anger, arouse,
bring to action
Purgation – the process of
getting rid of impurities
Quarry – a large open pit
from which stone is cut
Week 11
Raconteur – skilled storyteller
Rebuttal – reply to a criticism
Recluse – someone who lives
in seclusion
Reconcile – to settle a problem
Redundant – characterized
by unnecessary repetition of
or ideas
Reiteration – saying or doing
something repeatedly
Renounce – to give up or
put aside
Replete – gorged with food,
satiated
Repudiate – to cast off or
disown; to refuse to acknowledge
Residual – describing the
part that is left over
Week 12
Resolute – strongly determined
Retort – v. to reply sharply;
n. a sharp reply
Revere – to regard with awe
Sanction – v. to give permission;
n. a coercive measure
to make a person or persons comply
Sect – a subgroup of a religion;
faction
Sentinel – a guard, watchman
Week 13
Strident – harsh, grating
Stylized – in a particular
style, often an unrealistic one
Stupefy – to make less alert
Subordinate – placed in a
lower order or rank
Subtle – hardly noticeable
Sullen – sad, sulky
Superficial – near the surface,
slight
Suppleness – ability to bend
easily; limberness
Swindle – to cheat out of
money or property
Synthesis – the combining
of separate parts to form a whole
Week 14
Tacit - implied, not stated
outright
Tactful – saying or doing
the proper thing
Taint – to affect with something
harmful; contaminate
Taper – gradually decrease,
grow smaller at one end; dwindle
Temper – to moderate; to
make less extreme
Tenet – idea or belief
Terrestrial – having to do
with the earth
Theologian – one who studies
religion
Theoretical – not proven
true; existing only as an idea
Thesis – unproven theory;
long research paper
Week 15
Tract – a piece of land
Tranquility – calmness, peacefulness
Truant – someone who cuts
school or neglects his or her duties
Truncate – to shorten by
cutting off
Tumultuous – characterized
by noisy uproar
Unbiased – without prejudice
Ubiquitous – being everywhere
at the same time
Unanimity – complete agreement
Undermine – to injure or
destroy underhandedly
Unethical – having bad moral
principles
