Extension synonyms

44 synonyms for extension such as delay, add-on, amplification, continuation, and deferral. Extension is a noun, and its antonyms are retrogression and regression.

Another word for extension

1. addition

Add-on, addendum, addition, adjunct, annexe, appendage, appendix, augmentation, ell, supplement, supplementary building, and wing.

2. expansion

Amplification, augmentation, broadening, continuation, deepening, development, diversification, drawing out, elongation, enhancement, enlargement, expansion, growth, heightening, increase, lengthening, stretching, and widening.

3. prolongation

Additional time, continuation, deferral, delay, increase, increased time, lengthening, longer period, more/extra time, perpetuation, postponement, prolongation, and protraction.

Similar to extension