That minimizes, extenuates, or diminishes; palliative.

That mitigates; alleviating, extenuating, moderating. Frequently in mitigating circumstances n. also in singular chiefly Law a fact or situation…

That extenuates in senses of the verb. Now chiefly in phrase extenuating circumstances: circumstances that tend to diminish culpability.

Tending to palliate or extenuate. Obsolete.

That palliates (in various senses of the verb).

That tends to extenuate or excuse an offence; (also, in weakened use) placatory.

Characterized by extenuation; having the function or effect of extenuating.

Tending to extenuate (guilt).

= palliative, adj.

Tending or serving to mitigate; alleviating, extenuating, palliative; †soothing (obsolete).