Audacious rhymes with:
mendacious, predaceous, capacious, ceraceous, crustaceous, efficacious, fallacious, flirtatious, gracious, hellacious, herbaceous, horatius, ignatius, loquacious, mendacious, ostentatious, perspicacious, predaceous, proteinaceous, salacious, sebaceous, spacious, tenacious, vexatious, vivacious, voracious
Audacious sounds like:
ad's, ad-hoc, ada's, adachi, adage, adagio, adak, adas, adaza, adcock, adcox, addicks, addidas, addidas', addidas's, addidases, addis, adds, adduci, adequacy, ades, adidas, adidas's, adios, adisq, ads, ads', adss, adtec, adweek, adz, aid's, aide's, aides, aides', aidid's, aids, ataxia, ataxia's, atco, atek, ates, athas, atico, atocha, atsushi, attach, attache, attaches, attack, attacks, attic, attica, attics, atticus, attitudes, attwoods, atx, atz, audas, audi's, audiotex, audis, audits, auto's, autodesk, autos, awaits, aytes, ayyad's