Is irrational a synonym or antonym?

English Synonyms and AntonymsAnything is irrational when clearly contrary to sound reason, foolish when contrary to practical good sense, silly when petty and contemptible in its folly, erroneous when containing error that vitiates the result, unreasonable when there seems a perverse bias or an intent to go wrong.

Also question is, what is the synonym of irrational?

adjective. 1'she told herself that it was an irrational fear' SYNONYMS. unreasonable, illogical, groundless, baseless, unfounded, unjustifiable, unsound. absurd, ridiculous, ludicrous, silly, foolish, senseless, nonsensical, laughable, idiotic, stupid, wild.

Furthermore, what is the antonym for? Definition of Antonyms An antonym is a word that means the opposite of another word. For instance, the antonym of 'hot' may be 'cold. ' The root words for the word 'antonym' are the words 'anti,' meaning 'against' or 'opposite,' and 'onym,' meaning 'name. Synonyms and antonyms are exactly the opposite.

Beside this, what is another word for irrational fear?

noun fear, horror, terror, thing about (informal), obsession, dislike, dread, hatred, loathing, distaste, revulsion, aversion to, repulsion, irrational fear, detestation, overwhelming anxiety about She has a phobia of spiders.

What is the antonym of optimal?

If you trust on WordNet (): optimum, optimal (most desirable possible under a restriction expressed or implied) antonym: worst [Indirect via best] ((superlative of `bad') most wanting in quality or value or condition) "the worst player on the team"; "the worst weather of the year"

How do you use irrational in a sentence?

irrational Sentence Examples

It wasn't the money he objected to so much as the irrational logic.
There must be a God who can miraculously endow the irrational mind of man with truth - so runs the new.
The soul is partly irrational, partly rational; and therefore there are two kinds of virtue.

What is the symbol for irrational numbers?

Customarily, the set of irrational numbers is expressed as the set of all real numbers "minus" the set of rational numbers, which can be denoted by either of the following, which are equivalent: R∖Q, where the backward slash denotes "set minus".

Why is pi an irrational number?

Proof that π is irrational. In the 1760s, Johann Heinrich Lambert proved that the number π (pi) is irrational: that is, it cannot be expressed as a fraction a/b, where a is an integer and b is a non-zero integer. In 1882, Ferdinand von Lindemann proved that π is not just irrational, but transcendental as well.

Why are square roots irrational?

If a square root is not a perfect square, then it is considered an irrational number. These numbers cannot be written as a fraction because the decimal does not end (non-terminating) and does not repeat a pattern (non-repeating).

What does it mean to be logical?

Logical describes something that comes from clear reasoning. The adjective logical is rooted in the Greek word logos, which means "reason, idea, or word." So calling something logical means it's based on reason and sound ideas — in other words, thought out with mathematical precision and removed from emotion.

Who is irresponsible person?

The definition of irresponsible is not capable of handling assignments or taking responsibility. An example of an irresponsible person is someone who constantly forgets to do her assignments. YourDictionary definition and usage example.

What does it mean to be rational?

rational. Rational comes from the Latin word rationalis, meaning reasonable or logical. If you're rational, you do things based on logic, as opposed to impulse or whimsy. The original meaning in English was of something endowed with the ability to reason.

What is the definition of unfounded?

Things that are unfounded include lies, myths, and sometimes rumors. If something is unfounded, then there is no truth to it: the facts won't back it up. People often use this word when denying something: they'll say "Your words are unfounded!" Made-up creatures like unicorns and werewolves are unfounded.

What's a rational fear?

Rational fear is a reaction about a real threat where we have to protect ourselves. Irrational fear is something we fear, even though there is no direct link or threat to us. Rational fear is something that we are consciously aware of. It comes from the human brain and is brought about by genetics.

What is the most common irrational fear?

The ten most common phobiasArachnophobia: The fear of spiders. This phobia tends to affect women more than men. Ophidiophobia: The fear of snakes.

What is the difference between rational and irrational fears?

A rational fear is a fear of something real that is likely to actually happen. An irrational fear would be fear of something that is imaginary or very unlikely to happen. Its irrational to fear that fairies will kidnap your infant and leave a changling in its place, because fairies are imaginary.

What is the synonym of worry?

Choose the Right Synonym for worryNoun. care, concern, solicitude, anxiety, worry mean a troubled or engrossed state of mind or the thing that causes this. care implies oppression of the mind weighed down by responsibility or disquieted by apprehension.

What is the synonym and antonym of fear?

fear. Antonyms: assurance, confidence, courage, fearlessness, trust, boldness. Synonyms: apprehension, solicitude alarm, fright, dread, terror, trepidation, dismay, consternation, misgiving, horror, timidity, awe.

What is the synonym of fear?

terror, fright, fearfulness, horror, alarm, panic, agitation, trepidation, dread, consternation, dismay, distress. anxiety, worry, angst, unease, uneasiness, apprehension, apprehensiveness, nervousness, nerves, timidity, disquiet, disquietude, discomposure, unrest, perturbation, foreboding, misgiving, doubt, suspicion.

What is Antonomy?

an·to·nym. (ăn′t?-nĭm′) A word having a meaning opposite to that of another word: The word "wet" is an antonym of the word "dry." [ant(i)- + -onym.] an′to·nym′ic adj.

How do you use antonym in a sentence?

Example sentences from Wikipedia that use the word antonym: The antonym of white is black. The antonym of dharma is "adharma". The antonym of "respect" is "disrespect".