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WORDNET DICTIONARY
THESAURUS

WORDNET DICTIONARY

Noun darkening has 1 sense

• darkening(n = noun.act) blackening - changing to a darker color; Array
is a kind of change of color
has particulars: obfuscation
Derived forms verb darken₃, verb darken₁

Adjective darkening has 1 sense

• darkening(s = adj.all) Array - becoming dark or darker as from waning light or clouding over; "the darkening sky"

THESAURUS

darkening

blackening, blocking the light, burial, burying, clouding, concealedness, concealment, covering, covering up, covertness, deception, denigration, dimming, eclipsing, extinguishment, hiddenness, hiding, interment, invisibility, masking, melanization, mystification, nigrification, obfuscation, obnubilation, obscuration, obscurement, obumbration, occultation, occulting, overcast, overclouding, overshading, overshadowing, overshadowment, putting away, screening, secrecy, secretion, shading, shadowing, smirch, smirching, smudge, smudging, smut, smutch, smutching, subterfuge, uncommunicativeness

For further exploring for "darkening" in Webster Dictionary Online