Want to say megalomaniac differently? Here are other words for megalomaniac and its similar synonyms and opposite words to say in unique way.
Meaning of megalomaniac
A person who has an excessive desire for power and control, and is often characterized by delusions of grandeur.
Etymology of megalomaniac
The word "megalomaniac" comes from the Greek words "megas" meaning large or great, and "mania" meaning madness or frenzy.
   The term was first used in the late 19th century to describe a person with a psychological disorder characterized by delusions of grandeur and a desire for power and control.
Synonyms
                                                narcissist
                                                                        egomaniac
                                                                        power-hungry
                                                                        self-aggrandizing
                                                                        arrogant
                                                                        conceited
                                                                        pompous
                                                                        grandiose
                                                                        self-important
                                                                        vainglorious
                                                                        boastful
                                                                        pretentious
                                                                        domineering
                                                                        authoritarian
                                                                        dictatorial
                                                                        tyrannical
                                                                        oppressive
                                                                        despotic
                                                                        autocratic
                                                                        imperious
                                                                        overbearing
                                                                        superior
                                                                        haughty
                                                                        snobbish
                                                                        condescending
                                                                        patronizing
                                                                        manipulative
                                                                        exploitative
                                                                        ruthless
                                                                        cunning
                                                                        scheming
                                                                        ambitious
                                                                        driven
                                                                        forceful
                                                                        dominant
                                                                        commanding
                                                                        controlling
                                                                        manipulative
                                                                        exploitative
                                                            
            Definitions
- A person who has an excessive desire for power and control, and is often characterized by delusions of grandeur.
 - * A person who has a psychological disorder marked by delusions of grandeur and a desire for power and control.
 
Usage Examples
- The dictator was a megalomaniac who believed he was destined to rule the world.
 - * The CEO's megalomaniac tendencies led him to make reckless decisions that ultimately led to the company's downfall.
 
Antonyms
                                                humble
                                                                        modest
                                                                        unassuming
                                                                        self-effacing
                                                                        retiring
                                                                        shy
                                                                        timid
                                                                        diffident
                                                                        bashful
                                                                        demure
                                                                        reserved
                                                                        unpretentious
                                                                        lowly
                                                                        meek
                                                                        mild
                                                                        gentle
                                                                        kind
                                                                        compassionate
                                                                        empathetic
                                                                        altruistic
                                                                        selfless
                                                                        generous
                                                                        magnanimous
                                                                        benevolent