Meaning: able to be believed; convincing.
Synonym: acceptable, trustworthy
Meaning: a state of anxiety or nervous excitement.
Synonym: anxiety, perturbation, disquiet
Antonym: calmness, relaxation
Meaning: an act of retaliation.
Synonym: retaliation, counterattack
Antonym: pardon, remission
Usage: He felt secure enough in his information that he announced his opinion on the matter without fear of reprisal.
Meaning: a person who carries out a harmful, illegal, or immoral act.
Synonym: offender; delinquent
Antonym: Victim, a sufferer
Usage: Sonia was angry, certainly at the perpetrator but also at the Warwick police for not summarily arresting the man and rescuing the boy.
Meaning: showing great attention to detail; very careful and precise.
Synonym: careful, conscientious
Antonym: careless, sloppy, slapdash
6.Concurrence (noun) सन्निपतन
Meaning: the fact of two or more events or circumstances happening or existing at the same time.
Synonym:concordance, cooperation, coincidence.
Usage:Because the events ran in concurrence, the coordinator could not attend both parties at the same time.
7. Unprecedented (adjective) अभूतपूर्व
Meaning:never done or known before.
Synonym: unequalled, unmatched, unrivalled.
Antonym: precedented, familiar, usual.
Usage:The damage caused by the hurricane is unprecedented and has never been experienced before in this country.
8. Culmination (noun) पराकोटि
Meaning:the highest or climactic point of something, especially as attained after a long time.
Synonym: climax, pinnacle, peak.
Antonym: nadir, base, bottom.
Usage:Their arrest was the culmination of an operation in which 120 other people were detained.
9. Stable (adjective) स्थिर
Meaning: not likely to give way or overturn; firmly fixed.
Synonym: steady, secure, fixed
Antonym: unstable, unbalanced, rickety.
Usage: Markets are flourishing and prices are stable.
10. Bifurcation (noun) विभाजन
Meaning: the division of something into two branches or parts.
Synonym: pronged, diverge,bisect.
Antonym: adjoin, attach, add.
Usage:As the rivers creep farther down the delta, they become more and more sluggish, and their bifurcations and interlacings more complicated.
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