noun (linguistics) a grammatical rule (or other linguistic feature) that is found in all languages
Synonymslinguistic universal
noun (logic) a proposition that asserts something of all members of a class
Synonymsuniversal proposition
Oppositesparticular
noun coupling that connects two rotating shafts allowing freedom of movement in all directions
Synonymsuniversal joint
adjective of worldwide scope or applicability
Similarcomprehensive
adjective applicable to or common to all members of a group or set
Similargeneral
adjective adapted to various purposes, sizes, forms, operations
Similaradaptable
Source: WordNet 3.1, Princeton University