C2 English Adjectives: Incompetence, Communication & Danger

This part of our C2 adjective list equips you with the vocabulary to assess capability, expression, and risk at an advanced level. These words are essential for critical evaluation in academic, professional, and literary contexts, allowing for precise and impactful descriptions of performance and potential outcomes.

The collection focuses on three distinct areas: adjectives to describe being Foolish, Weak & Incompetent, using terms like inept and feckless; vocabulary related to Communication & Expression, from eloquent to succinct; and powerful words to convey Danger, Threat & Severity, such as pernicious and ominous.

Foolish, Weak & Incompetent

Word Example Sentence IPA (UK)
complacent We must not become complacent about security. /kəmˈpleɪsnt/
credulous Only the most credulous would believe such a story. /ˈkredjʊləs/
daft That was a daft thing to do. /dɑːft/
dubious I'm dubious about the accuracy of these figures. /ˈdjuːbiəs/
facile His facile explanation ignored the complexity of the issue. /ˈfæsaɪl/
farcical The whole situation became farcical when the clown arrived. /ˈfɑːsɪkl/
fatuous He made several fatuous remarks during the interview. /ˈfætʃuəs/
feckless The feckless young man showed no ambition whatsoever. /ˈfekləs/
futile Their attempts to save the company proved futile. /ˈfjuːtaɪl/
gullible Don't be so gullible—it's obviously a scam. /ˈɡʌləbl/
hapless The hapless victim fell for yet another scam. /ˈhæpləs/
indifferent He seemed indifferent to her feelings. /ɪnˈdɪfrənt/
indolent He led an indolent lifestyle, avoiding all forms of work. /ˈɪndələnt/
inept The government's response to the crisis was utterly inept.
Word Partners: utterly inept
/ɪˈnept/
inscrutable His expression remained inscrutable throughout the meeting. /ɪnˈskruːtəbl/
insipid The dialogue was insipid and unconvincing. /ɪnˈsɪpɪd/
lackadaisical His lackadaisical attitude annoyed his boss. /ˌlækəˈdeɪzɪkl/
lamentable The state of the building was lamentable. /ˈlæməntəbl/
leery Investors are leery of putting money into the volatile market. /ˈlɪəri/
lethargic I felt lethargic after the heavy meal. /ləˈθɑːdʒɪk/
ludicrous The suggestion that we could finish the project in a day is absolutely ludicrous. /ˈluːdɪkrəs/
lugubrious He had a lugubrious expression on his face. /ləˈɡuːbriəs/
maudlin After a few drinks he became maudlin and sentimental. /ˈmɔːdlɪn/
myopic The government's policy was criticised as being short-sighted and myopic. /maɪˈɒpɪk/
puerile His puerile jokes were embarrassing in a professional setting. /ˈpjʊəraɪl/
remiss It would be remiss of me not to mention her contribution. /rɪˈmɪs/
timorous She gave a timorous smile, unsure of how to react. /ˈtɪmərəs/
torpid The summer heat made everyone feel torpid and lazy. /ˈtɔːpɪd/
vacuous The interview was full of vacuous platitudes. /ˈvækjuəs/
vain All our efforts to save the company were in vain. /veɪn/

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Communication & Expression

Word Example Sentence IPA (UK)
abstruse The professor's lectures on quantum physics were notoriously abstruse. /əbˈstruːs/
arcane The text was full of arcane references that only specialists could understand. /ɑːˈkeɪn/
cogent She presented a cogent argument for restructuring the department.
Word Partners: cogent argument/case
/ˈkəʊdʒənt/
conciliatory He adopted a more conciliatory tone in the negotiations.
Word Partners: conciliatory gesture/tone
/kənˈsɪliətəri/
convoluted The novel's convoluted plot was difficult to follow.
Word Partners: convoluted plot/argument
/ˈkɒnvəluːtɪd/
didactic The novel's didactic tone made it feel more like a lecture than a story.
Word Partners: didactic tone
/dɪˈdæktɪk/
discordant The meeting was filled with discordant voices, making agreement impossible.
Word Partners: discordant note/voices
/dɪsˈkɔːdnt/
disjointed His disjointed explanation left the audience more confused than before.
Word Partners: disjointed narrative/explanation
/dɪsˈdʒɔɪntɪd/
esoteric The discussion of ancient philosophy became increasingly esoteric. /ˌesəˈterɪk/
germane Your comment is not germane to the current discussion. /dʒɜːˈmeɪn/
hackneyed The film's script was full of hackneyed phrases and clichés.
Word Partners: hackneyed phrase/cliché
/ˈhæknid/
inflammatory His inflammatory remarks only worsened the situation.
Word Partners: inflammatory rhetoric/remarks
/ɪnˈflæmətri/
mordant Her mordant wit made her a feared critic. /ˈmɔːdnt/
mundane The work was tedious and mundane, offering no intellectual stimulation. /mʌnˈdeɪn/
nebulous The plan to improve the company remained frustratingly nebulous. /ˈnebjʊləs/
obscure The reference was too obscure for most readers to understand. /əbˈskjʊə(r)/
opaque The windows were made of opaque glass for privacy. /əʊˈpeɪk/
pejorative The term has acquired a pejorative meaning over time. /pɪˈdʒɒrətɪv/
pithy She summed up the complex issue in a single pithy comment. /ˈpɪθi/
poignant The photograph was a poignant reminder of a happier time.
Word Partners: poignant moment/reminder
/ˈpɔɪnjənt/
ponderous The book was written in a ponderous style that made it difficult to read. /ˈpɒndərəs/
prosaic The reality of their life together was far more prosaic than they had imagined. /prəˈzeɪɪk/
pungent The cheese had a pungent smell that filled the room.
Word Partners: pungent smell/odour
/ˈpʌndʒənt/
recondite The book was full of recondite information that only a specialist would understand. /ˈrekəndaɪt/
sardonic He gave a sardonic smile. /sɑːˈdɒnɪk/
scathing The critic wrote a scathing review of the performance. /ˈskeɪðɪŋ/
scurrilous The newspaper published scurrilous allegations about the minister. /ˈskʌrələs/
succinct Please give me a succinct summary of the report.
Word Partners: succinct summary/account
/səkˈsɪŋkt/
tangential His comments were tangential to the main discussion. /tænˈdʒenʃl/
terse His replies to my questions were terse and unhelpful. /tɜːs/
trenchant She offered a trenchant critique of the government's policy. /ˈtrentʃənt/
trite His speech was filled with trite phrases that had lost all meaning. /traɪt/
verbose The report was unnecessarily verbose and could have been half the length. /vɜːˈbəʊs/

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Danger, Threat & Severity

Word Example Sentence IPA (UK)
abject The refugees lived in abject poverty.
Word Partners: abject poverty/misery
/ˈæbdʒekt/
baleful He was seen as a baleful influence on the young prince. /ˈbeɪlfl/
deleterious Smoking has deleterious effects on health. /ˌdelɪˈtɪəriəs/
detrimental The policy was detrimental to small businesses. /ˌdetrɪˈmentl/
excruciating He suffered from excruciating pain after the accident.
Word Partners: excruciating pain
/ɪkˈskruːʃieɪtɪŋ/
exigent The exigent circumstances required immediate action. /ˈeksɪdʒənt/
heinous He was accused of committing several heinous crimes.
Word Partners: heinous crime
/ˈheɪnəs/
incendiary His incendiary rhetoric provoked outrage and division.
Word Partners: incendiary device/rhetoric/remarks
/ɪnˈsendiəri/
menacing He spoke in a menacing tone.
Word Partners: menacing tone
/ˈmenəsɪŋ/
ominous There were ominous signs of trouble ahead.
Word Partners: ominous sign/warning/silence
/ˈɒmɪnəs/
onerous The task of sorting through the old archives proved more onerous than expected. /ˈəʊnərəs/
perilous They embarked on a perilous journey across the desert.
Word Partners: perilous journey/situation
/ˈperələs/
pernicious The pernicious effects of the policy became apparent over time. /pəˈnɪʃəs/
portentous The meeting began with a portentous silence. /pɔːˈtentəs/
vile The weather was absolutely vile all weekend. /vaɪl/

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