0
elate(verb, improve, refresh)
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encourage(verb, improve, refresh)
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feel at home(verb, expression, idiom, calm, rest)
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gladden(verb, improve, refresh)
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hang loose(verb, expression, calm, rest, soften)
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hearten(verb, improve, refresh)
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illume
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irradiate
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kick back(expression, rest)
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knock off(verb, expression, calm, rest, soften)
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laid back(expression, quit, acquiesce, comply, capitulate)
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lax(verb, calm, rest, soften, unwind)
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laze(verb, calm, rest, soften, unwind)
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let happen(expression, quit, relax, soften, comply)
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let oneself go(verb, expression, idiom, calm, rest)
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let up on(expression, idiom, quit, relax, spare)
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lie down(verb, expression, calm, rest, soften)
0
loose(verb, calm, rest, soften, unwind)
0
loosen(verb, calm, rest, soften, unwind)
0
loosen up(verb, expression, phrasal verb, calm, improve)
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APASmart Define. (2013). lighten up thesaurus. Retrieved September 22, 2026, from https://smartdefine.org/lighten_up/thesaurus/synonyms
ChicagoSmart Define. 2013. "lighten up thesaurus" https://smartdefine.org/lighten_up/thesaurus/synonyms (accessed September 22, 2026).
HarvardSmart Define 2013, lighten up thesaurus, Smart Define, viewed 22 September, 2026, <https://smartdefine.org/lighten_up/thesaurus/synonyms>.
MLASmart Define. "lighten up thesaurus" 28 June 2013. Web. 22 September 2026. <https://smartdefine.org/lighten_up/thesaurus/synonyms>