English Antonyms Practice Test 4

Altercation : a noisy argument or disagreement, especially in public.
Resonance : the quality in a sound of being deep, full, and reverberating.
Alternative : (of one or more things) available as another possibility or choice.
Consonance : agreement or compatibility between opinions or actions.
Inconsistency : the fact or state of being inconsistent.

Antonym of Altercation is Consonance