rad
2 antonyms and opposites of rad, grouped by meaning.
Adjective — Excellent, exciting or impressively cool.
Antonyms
How to use rad
The word patterns that sound natural to a native speaker.
Slang; fine in casual speech and social posts, out of place in formal writing.
Etymology
The slang adjective is a shortening of radical. The radiation unit is an acronym of radiation absorbed dose.
Full origin of rad →Frequently asked questions
Is "rad" still used?
Yes, though it carries a distinctly 1980s and skate-culture flavour, and is often used with mild irony by people who did not grow up with it. It remains current in skateboarding, surfing and snowboarding scenes without any irony at all.
What is the difference between a rad and a gray?
Both measure absorbed radiation dose. One gray equals 100 rads, and the gray is the SI unit that has replaced the rad in scientific and most regulatory use, though older American medical literature still uses rads.
Does "rad" mean the same as "radical"?
In slang, yes — rad is simply the clipped form, and both mean excellent. In politics the full word keeps its meaning of fundamental or extreme, which the clipped form does not carry.