Letters that make unimpaired
a, d, e, n, p, m, r, i, u are letters that make 'unimpaired'
Words within unimpaired
PA, aired, re, pair, IR, MP, UN, Pa, nim, Red, ED, red, impaired, paired, air, ire, AI, ai, Aire, Re, imp, pa, Ir, Ni, impair are words within 'unimpaired'