12-letter words that end in sly
- gregariously — fond of the company of others; sociable.
- groundlessly — In a groundless manner; without justification.
- harmoniously — marked by agreement in feeling, attitude, or action: a harmonious group.
- hellaciously — In a hellacious manner.
- homonymously — in a homonymous manner
- horrendously — shockingly dreadful; horrible: a horrendous crime.
- humourlessly — Alternative spelling of humorlessly.
- idolatrously — In an idolatrous manner.
- imperviously — In an impervious manner; impenetrably; impermeably.
- incautiously — In an incautious manner; with a lack of caution.
- incestuously — involving incest.
- indecorously — not decorous; violating generally accepted standards of good taste or propriety; unseemly.
- indigenously — originating in and characteristic of a particular region or country; native (often followed by to): the plants indigenous to Canada; the indigenous peoples of southern Africa.
- infectiously — communicable by infection, as from one person to another or from one part of the body to another: infectious diseases.
- ingloriously — In an inglorious manner.
- iniquitously — In an iniquitous manner.
- jeopardously — with risk or peril
- labouriously — Alternative form of laboriously.
- languorously — characterized by languor; languid.
- lasciviously — inclined to lustfulness; wanton; lewd: a lascivious, girl-chasing old man.
- libidinously — In a libidinous manner.
- licentiously — In a licentious manner, rowdily, overwhelmed by passion and without control of appetites (especially sexual appetites).
- loquaciously — In a loquacious manner.
- lubriciously — In a lubricious manner.
- lugubriously — In a lugubrious manner.
- malodorously — With a bad smell.
- marvellously — In a marvellous manner.
- mendaciously — In a lying or deceitful manner.
- meticulously — taking or showing extreme care about minute details; precise; thorough: a meticulous craftsman; meticulous personal appearance.
- miraculously — In a miraculous manner.
- monogamously — In a monogamous manner.
- monotonously — lacking in variety; tediously unvarying: the monotonous flat scenery.
- motionlessly — In a motionless manner; without moving.
- motivelessly — Without a motive.
- mysteriously — full of, characterized by, or involving mystery: a mysterious occurrence.
- nutritiously — In a way that provides nutrition; nourishment; food.
- obsequiously — characterized by or showing servile complaisance or deference; fawning: an obsequious bow.
- oleaginously — In an oleaginous manner.
- omnivorously — eating both animal and plant foods.
- outrageously — In an outrageous manner; to an outrageous degree.
- perfidiously — deliberately faithless; treacherous; deceitful: a perfidious lover.
- perniciously — causing insidious harm or ruin; ruinous; injurious; hurtful: pernicious teachings; a pernicious lie.
- portentously — of the nature of a portent; momentous.
- posthumously — arising, occurring, or continuing after one's death: a posthumous award for bravery.
- prayerlessly — in a prayerless manner, without the use of prayer
- precariously — dependent on circumstances beyond one's control; uncertain; unstable; insecure: a precarious livelihood.
- precociously — unusually advanced or mature in development, especially mental development: a precocious child.
- prodigiously — extraordinary in size, amount, extent, degree, force, etc.: a prodigious research grant.
- profitlessly — in such a way as to not yield profit, as in financial gains or general benefits or advantages
- propitiously — presenting favorable conditions; favorable: propitious weather.