Insexious 

having so much sex appeal that you actually infect others with your sexiness

girl: wow, that guy is so sexy
girl 2: i know, he's insexious
girl: i actually feel pretty damn sexy myself just being near him!

Insexious by randousername February 15, 2012

Insanious 

The act of being very insane or goofy.

"wow.. your acting very insanious right now"
"...your insanious attitude will get you in jail"

Insanious by xkrnxballarx August 20, 2007

ingenious 

one who is imaginative and creative.

one of the most important skills when it comes to being a successful womanizer, is the ability to be ingenious on demand.

ingenious by MintyLeila August 20, 2005

insidious 

Insidious (adverb insidiously)

developing in a very gradual, in a stealthy manner, with the intend of causing damage.

Prostate Cancer is an insidious disease.

insidious by piece September 18, 2006

Insepuous 

A word used to describe someone who can only otherwise be described as a drizzling cloud resembling a cantering or prancing reindeer on a sad or rainy day.

Seb is insepuous today.
That rain cloud is insepuous.
His actions could be described as rather insepuous.

Insepuous by aw_wild August 3, 2019

insatiously 

As if being "Magnetically" pulled toward someone or something.

I am insatiously drawn to you

insatiously by MeetVirginia67 March 15, 2017

Insidious 

A scary film

Just watched Insidious it was shit scary

Insidious by xizzie3 October 27, 2011