Wikipedia does not have synonyms and antonyms!
neice
Source: Wikipedia http://en.wikipedia.org/wiki/Kashrut
Conscription is the opposite of voluntary. People are forced by law to serve in the armed forces. From Wikipedia: Conscription is the compulsory enrollment of people to some sort of public service, most often military service.)
Negative one times any number is equal to the opposite of that number.Negative one times negative one is positive one. -from wikipedia
No. Every quadrilateral has 2 pairs of oposite sides. A paralelogram has two pairs of parallel sides. Cf wikipedia!
Wikipedia is an encyclopedia. It is written by contributors from the public rather than professional academics. Although the information submitted is reviewed by Wikipedia staff before it's posted, you must check other sources to confirm the accuracy of the information. Wikipedia has a bad reputation among some groups based on the belief that it contains junk and is highly inaccurate. I use Wikipedia extensively and find that it contains an amazing amount of information and by verifying the information found there, have found the opposite to be true by confirming the information with professional and academic information sites.
No. Marijuana is one of the few drugs that isnt. Type in "vasoconstrictor" into wikipedia to look up the ones that are. Marijuana actually does the opposite and increase blood flow and expand the arteries.
MDI stands for multiple document interface, more information and an explanotion can be found on wikipedia. Multi document interface is the opposite of singe document interface.
You may be referring to the Doppler effect. I suggest to look up "Doppler Effect" in the Wikipedia; but briefly, waves get "compressed" in the forward direction, and "elongated" in the opposite direction.
Nobody sponsors Wikipedia. You can donate to Wikipedia, though.
Antinucleons! Antiprotons and antineutrons do exist. See Wikipedia entries. == As nucleons are particles in the nucleus of an atom, and that means protons and neutrons, their opposite might be electrons. Electrons are essential components of atoms that are not found in the nucleus, but rather in the electron cloud that is far from the nucleus and defines the volume of an atom.
Why would you ask that on a Wikipedia sight? so no Wikipedia is not that bad.