full of danger or risk; causing danger; perilous; risky; hazardous; unsafe.
able or likely to cause physical injury: a dangerous criminal.
Origin of dangerous
1175–1225; Middle English da(u)ngerous domineering, fraught with danger <Old French dangereus threatening, difficult, equivalent to dangier (see danger) + -eus-ous
Women are frequently reminded, too, that Barbie would be dangerously underweight if she were a real human.
Barbie Is Out, Monster High Is In|Samantha Allen|October 21, 2014|DAILY BEAST
Complete protection from random harm is perhaps the most dangerously unrealistic of fantasies.
The Strange World of Political Assassination Fantasies|James Poulos|September 24, 2014|DAILY BEAST
The going rate for life jackets on board the dangerously rickety vessels tops $200, whether for men, women or children.
Confessions of a Human Trafficker Who Smuggled Desperate Migrants Into Europe|Barbie Latza Nadeau|June 5, 2014|DAILY BEAST
But many careful observers believe that “dangerously stretched physicians” are actually what some people want.
The Health-Care System Is So Broken, It’s Time for Doctors to Strike|Daniela Drake|April 29, 2014|DAILY BEAST
With airbrushing and digital manipulation, fashion can be an unobtainable image that's dangerously unhealthy.
Cara Delevingne and Michelle Rodriguez's PDA-Filled Holiday; Emma Watson Talks Pressures of Fashion Industry|The Fashion Beast Team|March 31, 2014|DAILY BEAST
An angel of reasonableness seems to watch over him, even when he comes most dangerously near to an extravagance.
Critical Miscellanies, Vol. I|John Morley
With a little tremulous laugh, dangerously akin to tears, she raises her soft palm to his cheek and tries to press him—from her.
April's Lady|Margaret Wolfe Hungerford
The oval, tear-swept face was dangerously close to his now, and set his blood racing again in all the quick, hot madness of youth.
The Ebbing Of The Tide|Louis Becke
But should the Long Island Indians prevail, an inroad upon the main would bring them dangerously near to the new towns.
A short history of Rhode Island|George Washington Greene
At the storming of St. Sebastian he was dangerously wounded.
The Loyalists of America and Their Times, Vol. 2 of 2|Edgerton Ryerson