1. (

• endless ,
• eternal ,
• interminable

) tiresomely long; seemingly without end; "endless debates"; "an endless conversation"; "the wait seemed eternal"; "eternal quarreling"; "an interminable sermon" ;

2. (

• endless ,

) infinitely great in number; "endless waves" ;

3. (

• dateless ,
• endless ,
• sempiternal

) having no known beginning and presumably no end; "the dateless rise and fall of the tides"; "time is endless"; "sempiternal truth" ;

4. (

• endless

) having the ends united so as to form a continuous whole; "an endless chain" ;