say it: i-LOO-siv
elusive is an adjective meaning "difficult to describe". It carries 4 recorded senses.
making great mental demands; hard to comprehend or solve or believe
“a baffling problem”
“I faced the knotty problem of what to have for breakfast”
“a problematic situation at home”
Definitions, synonyms and semantic relations for elusive come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.