Synonyms|131Antonyms|160|Broader|0Narrower|0Related|76
1
long-drawn-out
1
long-lived
1
long-range
1
long-term
1
long haul
1
permanent
1
perpetual
1
really into(expression, adjective, involved, absorbed, occupied)
1
rooted
1
set
1
settled
1
standing
1
thoughtful(adjective, absorbed, pensive, reflective, brooding)
1
timeless
1
unconditional
1
undying
1
unending
1
unlimited
1
unqualified
1
up to here(expression, adjective, idiom, involved, occupied)
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APASmart Define. (2016). deep in thought thesaurus. Retrieved September 25, 2026, from https://smartdefine.org/deep_in_thought/thesaurus/synonyms
ChicagoSmart Define. 2016. "deep in thought thesaurus" https://smartdefine.org/deep_in_thought/thesaurus/synonyms (accessed September 25, 2026).
HarvardSmart Define 2016, deep in thought thesaurus, Smart Define, viewed 25 September, 2026, <https://smartdefine.org/deep_in_thought/thesaurus/synonyms>.
MLASmart Define. "deep in thought thesaurus" 26 February 2016. Web. 25 September 2026. <https://smartdefine.org/deep_in_thought/thesaurus/synonyms>