The notes of English..

haggard 

adjective
looking ill or tired, often with dark skin under the eyes:
EX: He'd been drinking the night before and was looking a bit haggard.

harassed
adjective
anxious, annoyed and tired, especially because you have too many things to deal with:
EX: The supermarket was full of harassed-looking mothers with young children.

hazard

noun [C]
something that is dangerous and likely to cause damage:
a health/fire hazard
EX: The busy traffic entrance was a hazard to pedestrians.

haemorrhage
verb
1 [I] UK (US hemorrhage) to lose a large amount of blood in a short time:
EX: She started haemorrhaging while giving birth to the baby.

2 [I or T] to lose large amounts of something such as money over a period of time and be unable to stop this happening:
EX: The business has been haemorrhaging money for several months.

hesitate

verb [I]
to pause before you do or say something, often because you are uncertain or nervous about it:
EX: She hesitated slightly before answering the inspector's question.

heterodox

adjective
(of beliefs, ideas or activities) different and in opposition to generally accepted beliefs or standards:
EX: His opinions have always been distinctly heterodox.

heterogeneous

adjective
consisting of parts or things that are very different from each other:
EX: Switzerland is a heterogeneous confederation of 26 self-governing cantons.

hiatus

noun [C usually singular] FORMAL
a short pause in which nothing happens or is said, or a space where something is missing:
EX: The company expects to resume production of the vehicle again after a two-month hiatus.

hideous

adjective
extremely ugly or bad:
EX: They've just built some hideous new apartment blocks on the seafront.

hilarious

adjective
extremely amusing and causing a lot of laughter:
EX: He didn't like the film at all - I thought it was hilarious.

illuminate

verb [T] FORMAL
1 to light something and make it brighter:
EX: The streets were illuminated with strings of coloured lights.

2 to explain and show more clearly something that is difficult to understand:
an article which illuminates the issues at stake

imbibe

verb
1 [I or T] FORMAL OR HUMOROUS to drink, especially alcohol:
EX: Have you been imbibing again?

immense

adjective
extremely large in size or degree:
EX: They spent an immense amount of time getting the engine into perfect condition.

impel

verb  
to make someone feel that they must do something:
[+ to infinitive] She was in such a mess I felt impelled to (= felt I had to) offer your services.
EX: I wonder what it is that impels him to exercise all the time.

imperative

adjective
extremely important or urgent; needing to be done or given attention immediately:
EX: The president said it was imperative that the release of all hostages be secured.

imperil

verb  
to put something or someone at risk or in danger of being harmed or destroyed:
EX: A police raid would imperil the lives of the hostages.

impetuous

adjective
1 tending to act on a sudden idea or wish, without considering the results of your actions:
EX: He's so impetuous - why can't he think things over before he rushes into them?

2 An impetuous word or action is said or done suddenly, without considering the likely results:
EX: The Prime Minister may now be regretting her impetuous promise to reduce unemployment by half.

implausible

adjective
difficult to believe, or unlikely:
EX: The whole plot of the film is ridiculously implausible.

implicit

adjective
suggested but not communicated directly:
EX: He interpreted her comments as an implicit criticism of the government.

impracticable

adjective
If a course of action, plan, etc. is impracticable, it is impossible to do in an effective way:
EX: The changes to the tax system proved impracticable as they were impossible to enforce.

jurisdiction

noun [U]
the authority of an official organization to make and deal with especially legal decisions:
EX: The court has no jurisdiction in/over cases of this kind.
EX: School admissions are not under/within our jurisdiction.

justify

verb
to give or to be a good reason for:
EX: Are you sure that these measures are justified?

kernel 
noun [C]
1 the edible part of a nut that is inside the shell

2 the whole seed of the maize plant

3 the most important part of something, although it might not always be easy to find:
There is often a kernel of truth in what they say.

4.lapse (FAILURE)

noun [C]
a temporary failure:
EX: The management's decision to ignore the safety warnings demonstrated a remarkable lapse of judgment.

lethargic

adjective
lacking in energy; feeling unwilling and unable to do anything:
EX: I was feeling tired and lethargic.