Synonyms|102Antonyms|1|Broader|6Narrower|7Related|28
15
algae(noun, rootless, kelp)
13
kelp(noun, long brown)
9
herb
8
alga
6
nori
6
confervoid
6
weed(noun, plant, organism, green, herb)
4
tangle(noun, kelp)
4
gulfweed(noun, kelp)
4
rockweed(noun, kelp)
4
fungus
4
ivy
4
galingale
4
heterophyte
3
wrack
3
fruits and vegetables(expression, idiom)
3
fucus
3
grapevine
2
bean
2
green algae
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ChicagoSmart Define. 2015. "seaweed thesaurus" https://smartdefine.org/seaweed/thesaurus/synonyms (accessed September 21, 2026).
HarvardSmart Define 2015, seaweed thesaurus, Smart Define, viewed 21 September, 2026, <https://smartdefine.org/seaweed/thesaurus/synonyms>.
MLASmart Define. "seaweed thesaurus" 9 September 2015. Web. 21 September 2026. <https://smartdefine.org/seaweed/thesaurus/synonyms>