comprehensive has 2 distinct synonyms spread across 1 of its 3 senses. Each sense below keeps its own list, because a synonym belongs to a meaning and not to a word: swapping one sense's substitute into another sense's sentence is how a thesaurus makes writing worse. Its one recorded opposite is noncomprehensive.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
including all or everything
“comprehensive coverage”
an intensive examination testing a student's proficiency in some special field of knowledge
“she took her comps in English literature”
1 of the 3 recorded senses carries no synonym, antonym or related term, so it is not shown above. Every sense, with its definition and examples, is on the full entry for comprehensive.
Synonyms, antonyms and the broader and narrower relations for comprehensive come from Princeton University’s WordNet. Full sources and licences.