dangerous

be, look, prove, seem, sound

become, get

Things became dangerous when the driver lost control of the car on the icy road.

remain

make sth

Heavy rain made the hiking trail dangerous for visitors yesterday afternoon.

consider sth, regard sth as

bloody

That was a bloody dangerous situation when the car skidded on the ice.

exceedingly, extremely, highly, incredibly, really, terribly, very

Driving in heavy snow can be extremely dangerous, so we stayed home that day.

increasingly

a bit, a little, quite, rather, slightly

possibly, potentially

downright, positively

The old bridge is positively dangerous and should be closed immediately.

inherently

notoriously

Swimming in that river has always been notoriously dangerous because of the strong currents.

politically

Speaking out against the government was politically dangerous for journalists in that country.

for

Swimming alone in deep water can be dangerous for inexperienced swimmers.

to

Swimming alone in deep water can be dangerous to inexperienced swimmers.