BRILLIANCE, BRILLIANCY, BRILLIANT, BRILLIANTLY
ADJECTIVES
1250 ► BRIGHT brilliant, illustrious; said of a person
1300 ► GAY brilliant, showy; bright or lively-looking, esp. in colour
1430 ► ORIENT brilliant, lustrous, shining, glowing, radiant, resplendent → arch.
1432 ► SPLENDIDIOUS brilliant, splendid, magnificent, excellent, first-rate → obs.
1580 ► GEMMY brilliant, gem-like; glittering
1592 ► SPLENDICANT brilliant, resplendent → obs.
1599 ► LUCULENT brilliant, illustrious; said of a person → obs.
1913 ► SPLENDIFEROUS brilliant, splendid, fine, gorgeous → Amer. dial. (Bk.)
1960 ► DEADLY brilliant, excellent; fantastic; cool → sl.
1989 ► DANK brilliant, excellent → US sl.
1993 ► RANCID brilliant, excellent → Aust. sl.
ADVERBS
1515 ► ORIENTLY brilliantly, lustrously; in an ‘orient’ manner; clearly → obs.
1804 ► THRISSLY → THRISTLY brilliantly, splendidly, clearly; loudly, fiercely → obs.
NOUNS
1470 ► SOUTHRON a brilliant act → sl.
1485 ► LUCENCE brilliance, luminosity → (literal and figurative)
1519 ► ORIENTNESS brilliancy, lustre; the quality of being ‘orient’ → obs.
1634 ► CANDOUR brilliancy, brilliant whiteness → obs.
1652 ► FULGURANCE dazzling brilliance, as of lightning
1652 ► ORIENCY brilliancy, lustre
1656 ► LUCENCY brilliance, luminosity → (literal and figurative)
1676 ► ÉCLAT brilliancy, radiance, dazzling effect → obs.
1800 ► DASHING a brilliant or daring action; a showy liveliness in manner, dress, behaviour → colloq.
1820 ► DASHY a brilliant or daring action; a showy liveliness in manner, dress, behaviour → colloq.
1884 ► DASHER a brilliant or dashing attempt or motion → colloq.
NOUNS, PERSON
1989 ► BAMBER a brilliant person; an intellectual → UK sl.
VERBS
1909 ► FAN THE HAMMER to act in a brilliant but unscrupulous manner → US sl.
Lexicophilia 