Words that are spelled similarly to brightening:
brightening, frightening, lightening, tightening, heightening.
Words that rhyme with brightening:
lightning, lightening, enlightening, frightening, whitening, tightening, bolt of lightning, heightening, chain lightning, heat lightning, forked lightning.
Adjectives that are often used to describe brightening:
sudden, general, little, gradual, slight, optical, momentary, rapid, daily, initial, faint, slow, perceptible, facial, transient, steady, strong, visible, temporary, mere, apparent, progressive, relative, distinct, considerable, somewhat, electrolytic, limb, final, future, quick, intense, consecutive, instant, marked, ray, noticeable, significant, light, brief, overall, eclipse, soft, simultaneous, anomalous, observed, furtive, pale, pretty, hourly, subsequent, sunbeams, burnished, alternate, eager, fluoroscopic, wonderful, solar, unearthly, worth, fair, extra, slightest, spectacular, gray, imperceptible, interrogative, pleased, dim, notable, impulsive, closed, sweet, eastern, ruby.
Nouns that are often described by the adjective brightening:
day, eye, morning, sky, light, future, prospect, moonlight, science, glow, agents, morn, eyes, quarter, wind, way, effect, sun, hope, touch, night, life, year, sunshine, edge, outlook, picture, smile, dawn, path, paleness, solution, blue, change, intellect, glory, cheek, acid, cloud, faces, sway, shadow, operations, intelligence, glance, reputation, promises, tone, moon, liquid.
Words that sound like brightening:
brightening, broadening, breitling, burdening, buttoning, battening, brighten up, brightens, frightening, brittany, brighten, brighton, brightened, britany, burgeoning, brining, brittni, brittanie, brightener, bottoming, bridling, breighton, bourgeoning, heightening, pertaining, prisoning, bryanna, brightman, brenning, burst in on, britains, britons, bretons, britain, pretending, threatening, browning, britannia, briton, brittain, breton, whitening, bryony, britton, brittan, bruning, briony, britten, bryden, broughton, brittania, brittani, britanny, brayton, bratton, bruton, branning, braining, bryton, broten, britannic, briden, brewton, bruting, brittanic, braten, bitewing, bratten, bruiting, brittanny, bruening, boening, broken in, britannique, prettying, protamine, bringing, brightness, brimming, bitumen, brittian, bradenton, brought in, brunnen, bridesman, brattiness, brian eno, broadens, bryans, burtons, broken hill, battling, beckoning, badinage, berning, beaconing, beetling, bad timing, bertini, barytone.