Answer: rigidly

AnswerCrossword Clue
RIGIDLYSeverely.
RIGIDLYIn a strict way
rigidlystiff; inflexible
rigidlyRIGID, stiff (not easily bent)
rigidlyflexibly set in opinion
rigidlydeficient in or devoid of flexibility rigid price controls a rigid bar of metal
rigidlystrict; severe