4
plunge(verb, upset, drop, decline, release)
4
tip
3
pass(break, collapse, faint)
3
turn(verb, change, disturb, spoil, unsettle)
3
turn upside down(verb, expression, idiom, phrasal verb, upset)
2
careen
2
cave in(verb, expression, break, drop, give)
2
droop(verb, break, drop, give, decline)
2
eclipse(verb, faint, extinguish, erase, darken)
2
flake
2
keel(verb, upset, drop, slip, dip)
2
overset(verb, change, disturb, turn, spoil)
2
sink(verb, drop, decline, release, settle)
2
slide(verb, drop, decline, release, abandon)
2
subvert(verb, change, disturb, turn, spoil)
2
succumb(verb, break, drop, give, fail)
2
turn over(verb, expression, phrasal verb, upset, fall)
2
turn topsy-turvy(verb, expression, change, disturb, turn)
2
upturn(verb, upset, change, disturb, turn)
1
abate(verb, drop, decline, settle, ease)
11 years ago|2k views|share |citing 
APASmart Define. (2015). keel over thesaurus. Retrieved September 26, 2026, from https://smartdefine.org/keel_over/thesaurus/synonyms
ChicagoSmart Define. 2015. "keel over thesaurus" https://smartdefine.org/keel_over/thesaurus/synonyms (accessed September 26, 2026).
HarvardSmart Define 2015, keel over thesaurus, Smart Define, viewed 26 September, 2026, <https://smartdefine.org/keel_over/thesaurus/synonyms>.
MLASmart Define. "keel over thesaurus" 10 April 2015. Web. 26 September 2026. <https://smartdefine.org/keel_over/thesaurus/synonyms>