exhaustive
Word family
- exhaustivelyadverbC1
- exhaustivenessnounC2
- inexhaustibleadjectiveC1
Synonym discussion
Sense: adjective/1
Thorough, comprehensive, complete, and exhaustive all describe covering something fully, but each has a distinct emphasis. Thorough focuses on careful attention to every step or detail, as in a thorough inspection of every pipe in the house. Comprehensive emphasises wide scope and coverage of an entire field, such as a comprehensive guide to Southeast Asian art. Complete stresses that nothing is missing — a complete set of tools has every piece. Exhaustive is the strongest of the four: it implies that every possible case, detail, or option has been considered, leaving no gap at all. For example, an exhaustive list of bird species in Taiwan names every bird ever recorded, not just the common ones. Thorough and comprehensive are more frequent in everyday and academic English; exhaustive is reserved for contexts where absolute completeness is the central claim.
Common collocations
Etymology
Exhaustive comes from the Latin verb exhaurire — from ex- ('out') and haurire ('to draw, drain') — meaning 'to draw out' or 'to drain completely'. Its earliest English uses in the 1600s described literal draining of liquid. By the 1700s, speakers began using it figuratively for ideas, arguments, or searches that had been 'drained of all possibilities' — that is, so thorough that nothing is left to add. The modern sense of 'covering every detail' was well established by the 1800s.