a false belief or persistent irrational thought

to try in vain or attempt something presumptuously, often with malicious intent

extremely conceited, egotistical, and overbearing in attitude or behavior

to act blindly without thinking

arrogant and conceited

fabricated; groundless; illusory

to be carried away by unrealistic fantasies or to labor under a delusion

acting in a bold, lawless, or presumptuous manner without regard for consequences or authority

to rush indiscriminately into action

to speak recklessly or untruthfully; wild talk or lies

to have an inappropriately low opinion of oneself or to be unduly humble

to act recklessly or take rash action

ridiculous self-importance; arrogance

wild fantasy or unwarranted thought; deluded or improper desire

to make a false and unwarranted declaration

to behave unscrupulously

to tell lies or talk nonsense

inappropriate or presumptuous demands

to jump to an unfounded conclusion

absurd or groundless statements; nonsensical talk

to take something without permission

to speak tentatively or casually without expecting to be taken too seriously

to make irresponsible, groundless, or arbitrary criticisms and comments

a person who is both presumptuous and ignorant

unwarranted talk the listener can take or leave; something not to be taken too seriously

to do something (usually criticizing, judging, or commenting) rashly, without basis, or arbitrarily

a psychological state characterized by delusions of grandeur, omnipotence, or excessive self-importance

a forced analogy; to jump to an unwarranted conclusion

A mental health condition characterized by persistent, non-bizarre delusions.