60 entries under tranquil topic. ×

27
motionless(adjective, calm, quiet, smooth, moving)
20
inert(adjective, calm, quiet, smooth, gentle)
20
stationary(adjective, calm, quiet, smooth, moving)
19
inactive(adjective, calm, dull, quiet, gentle)
18
immobile(adjective, calm, quiet, gentle, dirty)
17
static(adjective, calm, quiet, smooth, dirty)
17
still(adjective, adverb, calm, quiet, gentle)
13
lifeless(adjective, calm, quiet, smooth, gentle)
11
quiet(adjective, calm, easy, gentle, flat)
9
unmoving(adjective, calm, quiet, dirty, still)
5
calm(adjective, quiet, smooth, gentle, still)
5
fixed(adjective, calm, quiet, smooth, mild)
3
stable(adjective, calm, quiet, smooth, mild)
2
at a standstill(expression, adjective, idiom, calm, still)
2
restful(adjective, calm, quiet, smooth, shy)
2
silent(adjective, calm, quiet, smooth)
2
stock-still(adjective, calm, quiet, smooth, still)
1
at a halt(expression, adjective, idiom, still)
1
at rest(expression, adjective, calm, quiet, smooth)
1
buttoned up(expression, adjective, calm, quiet, smooth)
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APASmart Define. (2015). stagnant thesaurus. Retrieved September 27, 2026, from https://smartdefine.org/stagnant/thesaurus/synonyms
ChicagoSmart Define. 2015. "stagnant thesaurus" https://smartdefine.org/stagnant/thesaurus/synonyms (accessed September 27, 2026).
HarvardSmart Define 2015, stagnant thesaurus, Smart Define, viewed 27 September, 2026, <https://smartdefine.org/stagnant/thesaurus/synonyms>.
MLASmart Define. "stagnant thesaurus" 10 April 2015. Web. 27 September 2026. <https://smartdefine.org/stagnant/thesaurus/synonyms>