massly
On a mass scale; widely.

masterfully
In a masterful manner; in an extremely confident and competent manner.

masteringly
compellingly

masturbatorily
In a masturbatory way.

matchlessly
In a matchless manner.

materialistically
In a materialistic manner.

materially
In a material manner; with regard to physical things or characteristics.
To a significant degree.

maternalistically
In a maternalistic fashion.

maternally
In a maternal manner; motherly, as a mother.

mathematically
According to or using mathematics.

mathwise
In terms of mathematics.

matily
Friendlily, like a mate.

matriarchally
In a matriarchal way.

matriarchically
matriarchally

matrically
By means of, or in the form of matrices

matricentrically
In a matricentric manner.

matricidally
In a matricidal manner.

matrifocally
In a matrifocal manner.

matrilaterally
On the mothers side

matrilineally
In matrilineal fashion.

matrilocally
In a matrilocal fashion.

matrimonially
In a matrimonial way.

matrixwise
By means of, or in terms of, matrices.

matronymically
In a matronymic manner.

mattedly
In a matted manner.

maturationally
in a maturational manner

maturely
In a mature manner.
Acting with maturity.

matutinally
In the early morning.

maudlinly
In a maudlin fashion.

mauger
Alternative spelling of maugre.

maugre
In spite of, notwithstanding.

maulgre
Alternative spelling of maugre.

maunderingly
So as to maunder.

mauvely
In a mauve manner; with a mauve colour.

mawkishly
In a mawkish manner.

maximally
To a maximal extent; as much as possible.

maximumly
In a maximum manner.

mayb
Alternative letter-case form of mayB.
Clipping of maybe.

maybeso
Maybe; perhaps.

mayhap
Maybe; perhaps; possibly; perchance.

mayhappen
maybe, perhaps.

mayhaps
Maybe; perhaps; possibly; perchance.

mayorally
By a mayor.

mazedly
In an astonished or bewildered manner.

mazily
In a mazy manner.

meagerly
In a meager way; poorly; inadequately.

meagrely
In a meagre way; poorly; inadequately.

mealily
In a mealy manner.

meanderingly
In a meandering or winding manner.

meaningfully
In a meaningful or significant manner.

meaninglessly
In a meaningless manner; nonsensically.

meaningly
With an implied meaning; with significance; meaningfully.

meanlier
comparative form of meanly: more meanly

meanliest
superlative form of meanly: most meanly

meanly
Humbly, of or from low social status; basely.
Poorly or inadequately.
In a mean manner; ill-willed, nastily.

meanspiritedly
In a meanspirited manner.

meantime
The time spent waiting for another event; time in between.

meantimes
plural of meantime

meanwhile
The time between two events.

meanwhiles
plural of meanwhile

meanwhilst
meanwhile

measurably
In a measurable manner.
To a measurable extent.

measuredly
In a measured fashion.

measurelessly
In a measureless manner.

measurely
In a measured fashion; with a regular pace or action.

measuringly
So as to measure or evaluate.

meatily
In a meaty manner.

meatlessly
In a meatless way; without meat.

mebby
Alternative form of mebbe.

mechanically
From a mechanical point of view.
In a mechanical manner, mindlessly, thoughtlessly, automatically, without thinking.

mechanistically
In a mechanistic, impersonal or automatic manner.
In terms of a mechanism.

mechanobiologically
In a mechanobiological manner

mechanoceptically
In a mechanoceptic manner

mechanochemically
In a mechanochemical manner.

mechanographically
By mechanographic means.

mechatronically
In terms of, or by means of, mechatronics.

medallically
With regard to medals.

medalwise
With reference to medals.

meddlesomely
In a meddlesome manner.

meddlingly
In a meddling manner.

mediaevally
Alternative spelling of medievally.

mediagenically
In a mediagenic fashion.

medially
In or relating to the middle.
In a medial direction or location; near or along the midline.
In a medial direction or location; nearer or toward the midline.
Inside a word; neither initially nor finally.

medianly
In a median direction

mediastinoscopically
By means of mediastinoscopy.

mediately
In a mediate manner, by the intervention of an intermediary agent or means; indirectly.

mediatically
In a manner related to the media.

mediatingly
So as to mediate.

mediationally
In terms of or by means of mediation; by indirect means.

mediatively
In a mediative manner.

mediatorially
As, or by means of, a mediator.

medically
For medical purposes.
In a medical manner or context.

medicamentally
In terms of medicinal properties.

medicamentously
In a medicamentous manner; medicinally.

medicinally
In a medicinal manner.

medicolegally
As regards medicolegal issues.

medievally
In a medieval way.

mediobasally
In a mediobasal manner.

mediocaudally
In a mediocaudal manner

mediocrally
In a mediocral manner.

mediocranially
In a mediocranial manner or direction

mediocrely
In a mediocre way.

mediodistally
In a mediodistal direction

mediodorsally
In a mediodorsal direction

mediolaterally
In a mediolateral direction

mediopassively
In a mediopassive manner.

medioplantarly
In a medioplantar manner or direction

medioproximally
In a medioproximal direction

mediosuperiorly
In a mediosuperior manner or direction

medioventrally
In a medioventral direction

meditatingly
While meditating.

meditatively
In a meditative manner.

mediumistically
In a mediumistic manner.

mediumly
To a medium extent.

meechingly
In a meeching manner.

meekishly
Synonym of meekly.

meeterly
tolerably; comfortably

meetly
fitly; suitably; properly

megalithically
In a megalithic manner.
extremely; to a great degree

megalomaniacally
In a megalomaniacal manner.

megaphonically
In a megaphonic manner.

megascopically
In a megascopic manner.

megatall
A building approximately between 600 meters and 900 meters tall, (between 2000 feet and 3000 feet tall). A building taller than a supertall.

meiotically
Pertaining to, or during, meiosis.

melanagogue
A medicine supposed to expel black bile or choler.

melanagogues
plural of melanagogue

melancholically
In a melancholic manner.

melancholily
In a melancholy manner.

melancholiously
In a melancholious manner.

melanogogue
Alternative form of melanagogue.

melanogogues
plural of melanogogue

melanotically
With regard to melanosis

melioristically
in a melioristic fashion

melismatically
In a melismatic way.

mellifluently
In a mellifluent manner.

mellifluously
In a mellifluous manner; sweetly.

mellowingly
So as to mellow.

mellowly
In a mellow manner.

melodially
Synonym of melodically.

melodically
In a melodic manner.

melodiously
In a melodious manner.

melodramatically
In a melodramatic manner.

meltingly
So as to melt, or seem to melt.

memberwise
In terms of members (items associated with class instances).

membranaceously
In a membranaceous manner.

membranously
In a membranous manner.

memeably
In a memeable manner.

memetically
In a memetical way.

memorably
In a memorable manner.

memorially
By means of, or in terms of, memory.

menacingly
In a menacing manner.

mendaciously
In a lying or deceitful manner.

menially
In a menial manner.

meningeally
In a meningeal manner

menopausally
In terms of, or by means of, the menopause.

menstrually
In a menstrual manner; in terms of the menses.

mensually
monthly

mensurably
In a mensurable manner.

mensurationally
With regard to measurement or mensuration.

mentalistically
In a mentalistic manner.

mentally
In a mental manner; an idea thought out in one's mind, as opposed to an idea spoken orally.

mentorially
In a mentorial manner; as or like a mentor.

meowingly
With meowing sounds.

mephitically
In a mephitic manner.

mercantilely
In a mercantile manner or context.

mercenarily
In a mercenary way, for selfish reason of profit or gain.

mercifully
In a merciful manner.
Thankfully.

mercilessly
In a merciless manner.

mercurially
In a mercurial manner.

merely
Without any other reason etc.; only, just, and nothing more.
Wholly, entirely.

mereologically
In mereological terms.