1
wired(sharp, bright, lively, active, alert)
1
wise(sharp, bright, lively, active, alert)
1
with it(expression, sharp, bright, lively, active)
1
word(information, sign, notice, alert, hint)
1
word to the wise(expression, idiom, sign, notice, alert)
0
size up(verb, expression, phrasal verb, see, mind)
0
agitate(distress, quarterback, piloted)
0
announce(foreshow, antecede, preexist)
0
antecede(foreshow, preexist)
0
apprehensive(alert, aware, clued-in)
0
attend(mind, avoid, heed)
0
augur(foreshow, antecede, preexist)
0
avoid(mind, heed)
0
awake(alert, aware, clued-in)
0
aware(alert, clued-in)
0
be ahead of(foreshow, antecede, preexist)
0
be cautious(mind, avoid, heed)
0
be in saddle(distress, steer, quarterback, navigate, piloted)
0
be in the cards(foreshow, antecede, preexist)
0
be watchful(verb, mind, notice, spot, avoid)
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APASmart Define. (2011). heads up thesaurus. Retrieved September 23, 2026, from https://smartdefine.org/heads_up/thesaurus/synonyms
ChicagoSmart Define. 2011. "heads up thesaurus" https://smartdefine.org/heads_up/thesaurus/synonyms (accessed September 23, 2026).
HarvardSmart Define 2011, heads up thesaurus, Smart Define, viewed 23 September, 2026, <https://smartdefine.org/heads_up/thesaurus/synonyms>.
MLASmart Define. "heads up thesaurus" 24 May 2011. Web. 23 September 2026. <https://smartdefine.org/heads_up/thesaurus/synonyms>