Synonyms|251Antonyms|122|Broader|7Narrower|2Related|39

57 entries under noun topic. ×

3
attention
3
care
2
meticulousness
2
tautness
1
accuracy
1
tenacity(weakness, stubbornness, diligence, irresolution)
1
tenseness
1
tension
1
tightness
1
vigilance
0
accent
0
accomplishment
0
achievement
0
air
0
arduousness
0
character
0
closeness
0
consistency
0
constancy
0
decision
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APASmart Define. (2015). slackness thesaurus. Retrieved September 28, 2026, from https://smartdefine.org/slackness/thesaurus/antonyms
ChicagoSmart Define. 2015. "slackness thesaurus" https://smartdefine.org/slackness/thesaurus/antonyms (accessed September 28, 2026).
HarvardSmart Define 2015, slackness thesaurus, Smart Define, viewed 28 September, 2026, <https://smartdefine.org/slackness/thesaurus/antonyms>.
MLASmart Define. "slackness thesaurus" 10 April 2015. Web. 28 September 2026. <https://smartdefine.org/slackness/thesaurus/antonyms>