Synonyms|15Antonyms|11|Broader|20Narrower|33Related|88
9
keep ears open(expression, idiom, action, anxiety, alertness)
8
cock up ears(expression, idiom, action, anxiety, alertness)
8
prick up ears(expression, idiom, action, anxiety, alertness)
7
be on the alert(expression, idiom, action, anxiety, alertness)
7
exert oneself(expression, action, anxiety, alertness)
7
pull up socks(expression, idiom, action, anxiety, alertness)
7
strain oneself(expression, action, anxiety, alertness)
6
become alarmed(expression, action, anxiety, alertness)
6
grow wary(expression, action, anxiety, alertness)
5
become concerned(expression, action, anxiety, alertness)
5
grow suspicious(expression, action, anxiety, alertness)
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APASmart Define. (2011). heave a sigh of relief thesaurus. Retrieved October 1, 2026, from https://smartdefine.org/heave_a_sigh_of_relief/thesaurus/antonyms
ChicagoSmart Define. 2011. "heave a sigh of relief thesaurus" https://smartdefine.org/heave_a_sigh_of_relief/thesaurus/antonyms (accessed October 1, 2026).
HarvardSmart Define 2011, heave a sigh of relief thesaurus, Smart Define, viewed 1 October, 2026, <https://smartdefine.org/heave_a_sigh_of_relief/thesaurus/antonyms>.
MLASmart Define. "heave a sigh of relief thesaurus" 20 May 2011. Web. 1 October 2026. <https://smartdefine.org/heave_a_sigh_of_relief/thesaurus/antonyms>