Significant

مترادف و متضاد significant

1. adjective telling, meaningful
   Synonyms: cogent, compelling, convincing, denoting, eloquent, expressing, expressive, facund, forceful, heavy, important, indicative, knowing, meaning, momentous, powerful, pregnant, representative, rich, sententious, serious, sound, suggestive, symbolic, valid, weighty
   Antonyms: insignificant, meaningless, unimportant
2. adjective important, critical
   Synonyms: big, carrying a lot of weight, consequential, considerable, heavy, material, meaningful, momentous, notable, noteworthy, serious, substantial, vital, weighty
   Antonyms: minor, trivial, unimportant