flat out

9 times actors flat-out refused to deliver their lines

flat out

Definition
as fast or as hard as possible:
"the whole team is working flat out to satisfy demand"
informal
NORTH AMERICAN ENGLISH
without hesitation or reservation:
"she flat out said she didn't trust her fellow board members""flat-out perjury"
Similar:
hard
vigorously
with a vengeance
to the full
all out
post-haste
full steam ahead
hell for leather
hammer and tongs
like crazy
like mad
like a bat out of hell
at a lick
like the wind
like billy-o
like the clappers
at a rate of knots

as hard as possible

for all one's worth

to the utmost

to the limit

at full speed

as fast as possible

at full tilt

at breakneck speed

like a bomb

like greased lightning
Opposite:
moderately
lying stretched out, especially asleep or in a state of exhaustion:
"he lay flat out, breathing heavily"

Definition
as fast or as hard as possible:
"the whole team is working flat out to satisfy demand"
informal
NORTH AMERICAN ENGLISH
without hesitation or reservation:
"she flat out said she didn't trust her fellow board members""flat-out perjury"
Similar:
hard
vigorously
with a vengeance
to the full
all out
post-haste
full steam ahead
hell for leather
hammer and tongs
like crazy
like mad
like a bat out of hell
at a lick
like the wind
like billy-o
like the clappers
at a rate of knots

as hard as possible

for all one's worth

to the utmost

to the limit

at full speed

as fast as possible

at full tilt

at breakneck speed

like a bomb

like greased lightning

Opposite:
moderately
lying stretched out, especially asleep or in a state of exhaustion:
"he lay flat out, breathing heavily"