- Moronically Adv
- Morosely Adv
- Morphemically Adv
- Morphogenetically Adv
- Morphologically Adv
- Mortal Adj Noun Adv
- Mortally Adv
- Mortifyingly Adv
- Most Adv
- Mostly Adv
- Motherly Adj Adv
- Motionlessly Adv
- Motivationally Adv
- Mournfully Adv
- Mousily Adv
- Mouthily Adv
- Movably Adv
- Moveably Adv
- Movingly Adv
- Much Adv
- Mucilaginously Adv
- Muckily Adv
- Mucking Noun Pres. Participle Adv
- Muddily Adv
- Muggily Adv
- Mulishly Adv
- Multicentrically Adv
- Multifariously Adv
- Multifidly Adv
- Multifold Adj Adv
- Multiformly Adv
- Multilaterally Adv
- Multilingually Adv
- Multilpicatively Adv
- Multiplicatively Adv
- Multiply Adj Verb Adv Adj
- Multitudinously Adv
- Mundanely Adv
- Municipally Adv
- Munificently Adv
- Murderously Adv
- Murkily Adv
- Murkly Adv
- Muscularly Adv
- Musefully Adv
- Mushily Adv
- Musically Adv
- Musicianly Adj Adv
- Musingly Adv
- Muskily Adv
- Mussily Adv
- Mustily Adv
- Mutably Adv
- Mutagenically Adv
- Mutationally Adv
- Mute Adj Noun Verb Adv
- Mutedly Adv
- Mutely Adv
- Mutinously Adv
- Mutually Adv