Regimental rhymes with:
detrimental, elemental, fundamental, incremental, instrumental, monumental, ornamental, sentimental, supplemental, temperamental
Regimental sounds like:
recently, rekindle, richenthal, rosendahl, rosendale, rosenthal
detrimental, elemental, fundamental, incremental, instrumental, monumental, ornamental, sentimental, supplemental, temperamental
recently, rekindle, richenthal, rosendahl, rosendale, rosenthal