19 entries under restrained topic. ×

6
attentive(adjective, keen, sharp, lively)
6
cautious(adjective, adverb, keen, alert)
4
circumspect(adjective, keen, sharp, lively)
2
cagey(adjective, sharp, lively, careful)
2
prudent(adjective, smooth, alert, careful)
1
calculating(adjective, careful, reserved, prudent)
1
canny(adjective, smooth, wise, hesitant)
1
chary(adjective, careful, reserved, prudent)
1
discreet(adjective, careful, reserved, prudent)
1
gingerly(adjective, careful, reserved, prudent)
1
leery(adjective, careful, reserved, prudent)
1
safe(adjective, careful, reserved, prudent)
1
suspicious(adjective, alert, hesitant, reserved)
1
with eyes peeled(expression, adjective, idiom, keen)
0
noncommittal(adjective, hesitant, reserved, cautious)
0
overcareful(adjective, hesitant, reserved, cautious)
0
overcautious(adjective, hesitant, reserved, cautious)
0
reserved(adjective, hesitant, cautious, suspicious)
0
reticent(adjective, hesitant, reserved, cautious)
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APASmart Define. (2015). on the lookout thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/on_the_lookout/thesaurus/synonyms
ChicagoSmart Define. 2015. "on the lookout thesaurus" https://smartdefine.org/on_the_lookout/thesaurus/synonyms (accessed October 1, 2026).
HarvardSmart Define 2015, on the lookout thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/on_the_lookout/thesaurus/synonyms>.
MLASmart Define. "on the lookout thesaurus" 14 April 2015. Web. 1 October 2026. <https://smartdefine.org/on_the_lookout/thesaurus/synonyms>