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”
Synonyms, antonyms and the broader and narrower relations for glimpse come from Princeton University’s WordNet. Full sources and licences.
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”