bite
pertinacious
remain firm
stand
flat-footed
hold the fort
hold fast
dig in one's heels
bind
adhere
bond
stick to
stand one's ground
stick
hold the line
unreconstructed
hold
on the right foot
unflinching
handfast
rank
play one's cards right
staunch
stand fast
confidently
adherently
assert oneself
hard line
obeisance
rest one's case
surely
go by
hold one's own
fiducially
soldier
stick to one's guns
perform
hold on
grasp
empowered
loyal
keep one's stick on the ice
execute
take the front seat
do
courage of one's convictions
strong-mindedly
deal
suitably
paramountly
time-serving
in place
boldness
self-possessed
stay up
strikingness
prudently
do the decent thing
keep
hard
deep-set
firmly
purism
librate
touch off
trigger off
activate
trip
providentially
maintain
ripe
bear
observe
groundedly
preservative
spark off
pound the table
set off
clear the decks
keep faith
spark
actuate
stand up
go to bat
trigger
stand up on one's hind legs
do well
know where one stands
stick with
proactivism
hang
proactivist
cling
endure
posture
to find a better fitting word. Finally, thanks to ChatGPT, the overall results have been greatly improved.