1. hiatus
(noun) – a break or lapse in continuity
Examples:
Talks between the two countries have resumed after six-year hiatus.
Synonyms:
Pause, break, interruption
Antonyms:
Continuation, maintenance

2. hoard Examples: (verb) – to accumulate or stash away
Why are you hoarding all that junk in your backyard?
Antonyms:
Discard, remove,
get rid of
Synonyms:
Save, store, collect

3. implausible
(adj.) – not possible, not imaginable
Examples:
His story seems implausible. Nobody can believe such a story.
Synonyms:
Unlikely, unbelievable, incredible
Antonyms:
Plausible, possible, imaginable

4. impudence Her impudence made her unpopular among her peers. arrogance
(n.) – bold disrespect or rudeness
(adj.) impudent
Examples:
Her impudence made her unpopular among her peers.
Synonyms:
arrogance
Antonyms:
respect

5. incorrigible Antonyms: Changeable, malleable Examples:
(adj.) – not capable of being changed
Examples:
She is incorrigible even after going to rehab so many times.
His opinion was incorrigible. Nobody could make him change his mind.
Antonyms:
Changeable, malleable
Synonyms:
Habitual, persistent, hopeless

6. indomitable
(adj.) – unable to be subdued or overcome; not easy to be defeated
Examples:
Due to his indomitable attitude, the captured man succeeded to survive until his rescue.
Synonyms:
Strong, unconquerable, tough
Antonyms:
Feeble, weak