significant

adj

1. consequential, of great consequence, momentous, eventful, fateful, historic, landmark; vital, crucial, essential, valuable, necessary; critical, decisive, material; priority, urgent, emergent, exigent, pressing; grave, serious, sober, solemn; important, of great import, portentous; weighty, carrying great weight, heavy, ponderous, substantial, sizable; big, big-time, great, large, on the map; major, main, principal, prime, primary, chief, leading, foremost; outstanding, emiment, prominent, high-ranking, high-level, top-level; notable, of note, noteworthy, remarkable, of merit, meritorious, worthy; influential, well-connected, powerful.

2. meaningful, fraught with meaning, pregnant, pithy, of substance, deep, profound; suggestive, meaning, significative; indicative, symptomatic, diagnostic, Med. diacritic; prognostic, prognosticative, prognosti-catory, prophetic, presageful; portentous, ominous, premonitory, warning, foreboding, boding; allusive, connotative, inferential, implicative, implicational; denotative, denominative, designative, representational, symbolic.

3. expressive, telling, informative, communicative, revealing, demonstrative, exhibitive, pointed, forceful, effective; signal, knowing, understood, conventional, agreed upon; inside, esoteric, private, personal; secret, furtive, surreptitious, stolen, covert, clandestine.