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HYPHEN
WORDNET DICTIONARY
THESAURUS

WORDNET DICTIONARY

Noun unpleasantness has 2 senses

• unpleasantness(n = noun.feeling) Array - the feeling caused by disagreeable stimuli; one pole of a continuum of states of feeling; Array
is a kind of pain, painfulness
Antonym: pleasantness
Derived form adjective unpleasant₁

• unpleasantness(n = noun.attribute) Array - the quality of giving displeasure; "the recent unpleasantness of the weather"
is a kind of quality
has particulars: nastiness, distastefulness, odiousness, offensiveness, awfulness, dreadfulness, horridness, terribleness, harshness, roughness
Antonym: pleasantness
Derived form adjective unpleasant₁

THESAURUS

unpleasantness

Discordia, Eris, badness, clash, clashing, conflict, contention, damnability, disaccord, disaffinity, discord, discordance, discordancy, disharmony, enmity, evilness, friction, improperness, inaccuracy, inauspiciousness, incompatibility, incompatibleness, inexpedience, inferiority, inharmoniousness, inharmony, invalidity, jangle, jar, malevolence, mischief, moral badness, noncooperation, open conflict, peccancy, reprehensibility, rub, strained relations, tension, unfavorableness, unharmoniousness, unhealthiness, unkindness, unskillfulness, viciousness, wickedness

For further exploring for "unpleasantness" in Webster Dictionary Online