Definition: (of a person, action, or manner) not showing or feeling nervousness, anger, or other emotions; (of the weather) pleasantly free from wind.
To become quiet or calm, especially after a state of agitation.
Gloss: IX/\ REGARDLESS/NOT-MATTER IX NOT SPEAK, POSS FAMILY/\ CL:family IX1 CL:1 APPROACH/\ CL:C TEND-to CALM-DOWN + AFFECT.
English equivalent: Even if he doesn't speak, his mere presence has a calming effect on the family.
Spatial agreement of the subject (the man) and the subject (the family) with the verb (calm down and affect).