1.Definition: evidencing little spirit or courage; overly submissive or compliant

"A fine fiery blast against meek conformity", "She looked meek but had the heart of a lion"

Related Adjective(s):spiritless

2.Definition: humble in spirit or manner; suggesting retiring mildness or even cowed submissiveness

"Meek and self-effacing"

Related Adjective(s):mild, modest

3.Definition: very docile

"Meek as a mouse"

Related Adjective(s):tame