Synonyms for Prolonging:

n.

continuation (noun)
Maintaining, Perpetuating, enduring, persisting, Protracting, Sustaining, continuing.
elongation (noun)
stretching, lengthening.

v.

continuing (verb)
persevering, persisting, Protracting, Sustaining, continuing, abiding, Extending, Maintaining.
enduring (verb)
Outliving, Perpetuating, enduring, outlasting, lasting.
extending (verb)
stretching, Elongating, expanding, Enlarging, lengthening.
lengthening (verb)
stretching, Elongating, expanding, Extending, lengthening.

Usage examples for Prolonging

  1. As soon as victory permitted me to restore your ancient laws to your capital and to a part of your provinces, I have done so readily, without, however, prolonging a war which would have shed the blood of my subjects. – The Project Gutenberg Memoirs of Napoleon Bonaparte by Bourrienne, Constant, and Stewarton
  2. The coachman cried out in the dimness to his horses like a bird, prolonging his call drearily, and then violently cracking his whip. – The Garden Of Allah by Robert Hichens