ceaseless vs nonstop

ceaseless

• Without stop or pause, incessant. 

• Without an end. 

nonstop

• Without stopping; without interruption or break. 

• Describing a point mutation within a stop codon that causes the continued translation of an mRNA strand. 

• Without stopping; without interruption or break 

• A linguistic sound that is not a stop; a continuant. 

• A convenience store in parts of Europe, open 24 hours a day. 

• A nonstop journey, especially a nonstop flight.