Not necessarily.
It may or may not be - just like a positive decimal.
Rational
A decimal number can be rational or irrational.
it is irrational because you just keep writing the same number over and over again!
If you have any positive irrational number, then its negative is also irrational.
A negative irrational number can be thought of as an irrational number multiplied by -1, or an irrational number with a minus sign in front of it.
If it says "negative irrational", then obviously it is irrational.
When a decimal can't be expressed as a fraction then it is an irrational number.
Pi is an irrational number
In the number system , there are decimal numbers, fractions,rational numbers , irrational numbers , negative and positive numbers.-0.567 on the number system is negative number.
It is rational. An irrational number is a number that you cannot define by a fraction or a decimal. Since you wrote it as a decimal, it is rational. The fact that it is negative does not matter.