Free of flaws or imperfections; unsullied.
Free of foreign material or pollutants.
Free of immoral behavior or qualities; clean.
Mere; that and that only.
That idea is pure madness!
(of a branch of science) Done for its own sake instead of serving another branch of science.
Of a single, simple sound or tone; said of some vowels and the unaspirated consonants.
(of sound) Without harmonics or overtones; not harsh or discordant.