Extensive synonyms such as "all-encompassing, ample, across the board, and all-embracing". Extensive is an adjective, and its antonyms are small and limited. Here are 41 another word for extensive with example sentences.
41 other ways to say extensive.
His knowledge on history is extensive, detailed, and impressive.
She has extensive experience in management, leadership, and strategy.
The research required extensive preparation, analysis, and documentation.