Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "unfirm" in a sentence
"I felt like my stomach had turned to Jell-O inside me, all quivery and unfirm."
"As far as supplying energy to the neighbouring countries is concerned this amounts to approximately 4% of the energy generated and most of this relates to “unfirm contractual” obligations, which means essentially that when the country experiences a shortage we very quickly stop electricity supplies to our neighbours."
"Lack of expansion has also resulted in networks being overloaded and capacity becoming increasingly unfirm."