140 entries under careful topic. ×

1
calculating(thoughtful, cautious, prudent, suspicious)
1
civil(adjective, kind, reasonable, friendly, sensible)
1
conversant(knowledgeable, aware, attentive, wary)
1
discriminating(adjective, alert, intelligent, cautious)
1
forethoughtful(thoughtful, prudent, watchful, guarded)
1
glued(adjective, alert, caring, thoughtful)
1
hooked(adjective, alert, caring, thoughtful)
1
jazzed(sharp, bright, lively, active)
1
keen(adjective, kind, alert, caring)
1
know all the answers(expression, idiom, aware, attentive)
1
know ins and outs(expression, idiom, aware, attentive)
1
knowledgeable(adjective, alert, familiar, wise)
1
not missing a trick(expression, adjective, idiom, alert)
1
observative(adjective, kind, alert, caring)
1
on the alert(expression, adjective, idiom, alert)
1
on the watch(expression, adjective, idiom, adverb, alert)
1
on toes(expression, adjective, adverb, bright, lively)
1
playing it cool(expression, thoughtful, prudent, watchful)
1
playing safe(expression, thoughtful, sober, prudent)
1
precautious(thoughtful, cautious, watchful, tactful)
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APASmart Define. (2015). heedful thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/heedful/thesaurus/synonyms
ChicagoSmart Define. 2015. "heedful thesaurus" https://smartdefine.org/heedful/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, heedful thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/heedful/thesaurus/synonyms>.
MLASmart Define. "heedful thesaurus" 13 April 2015. Web. 1 October 2026. <https://smartdefine.org/heedful/thesaurus/synonyms>