glimpse has 2 distinct synonyms spread across 1 of its 4 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. WordNet records no antonym for it — antonymy is a relation between word forms rather than concepts, so it is deliberately sparse.
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.
a brief or incomplete view
“from the window he could catch a glimpse of the lake”
a vague indication
“he caught only a glimpse of the professor's meaning”
catch a glimpse of or see briefly
“We glimpsed the Queen as she got into her limousine”
Synonyms, antonyms and the broader and narrower relations for glimpse come from Princeton University’s WordNet. Full sources and licences.