Synonyms of extensively

2 Syllables

in-depth, broadly, amply, greatly

3 Syllables

copiously, largely, widely, plenteously

4 Syllables

liberally, completely, commodiously, prodigiously, imposingly, substantially, prodigally, generally, capaciously

5 Syllables

astonishingly, indispensably, expansively, predominantly, intensively, voluminously, extravagantly

6 Syllables

exaggeratedly, comprehensively, immoderately