Synonyms of cataclysmal

cataclysmal

adjective

variants or cataclysmic

1

as in disastrous

bringing about ruin or misfortune

a cataclysmal decision to plunge the nation into war

Synonyms & Similar Words

• disastrous
• catastrophic
• fatal
• destructive
• adverse
• unfortunate
• damning
• fateful
• ruinous
• calamitous
• damaging
• apocalyptic
• apocalyptical
• harmful
• detrimental
• pernicious
• hapless
• deleterious
• evil
• hurtful
• injurious
• luckless
• prejudicial
• ill-fated
• baneful
• ill-starred
• noxious
• ill
• baleful

Antonyms & Near Antonyms

• happy
• lucky
• fortunate
• fortuitous
• providential
• fair
• optimistic
• golden
• promising
• bright
• encouraging
• fluky
• hopeful
• propitious
• rosy
• upbeat
• auspicious
• flukey
• heartening
• rose-colored

2

as in devastating

causing or tending to cause destruction

a cataclysmal landslide that virtually wiped out the village

Synonyms & Similar Words

• disastrous
• devastating
• devastative
• destructive
• annihilatory
• poisonous
• ruinous
• fatal
• lethal
• deadly
• calamitous
• murderous
• fell
• killer
• antibiotic
• virulent
• harmful
• detrimental
• pernicious
• biocidal
• deleterious
• vital
• mortal
• baleful
• deathly
• pestilent

Antonyms & Near Antonyms

• protective
• nondestructive
• creative
• productive
• constructive
• useful
• helpful
• harmless
• formative
• innocent
• innocuous
• healthy
• preservative
• healthful
• wholesome
• inoffensive
• ameliorative
• nonlethal
• nonfatal
• salubrious

3

as in turbulent

marked by sudden or violent disturbance

the French Revolution was one of the great cataclysmal events in modern history

Synonyms & Similar Words

• turbulent
• tumultuous
• sporadic
• convulsive
• stormy
• noisy
• spasmodic
• tempestuous
• boisterous
• riotous
• furious
• fitful
• clamorous

Antonyms & Near Antonyms

• peaceful
• calm
• undisturbed
• tranquil
• serene
• unperturbed
• placid
• untroubled
• unshaken