Not enough to meet a demand or requirement

• wanting
• shy
• short
• scarce
• insufficient
• inadequate
• deficient

Below another in standing or importance

• smalltime
• subordinate
• subaltern
• small
• secondary
• petty
• minor-league
• minor
• lower
• low
• lesser
• junior
• inferior

Referring to physical position

• pressed down by
• on the underside of
• pinned beneath
• supporting
• held down by
• concealed by
• beneath
• covered by
• on the nether side of
• below
• on the bottom of

Subject to authority

• directed by
• obedient to
• obeying the dictates of
• in the power of
• governed by
• under the sway of
• subjugated to
• amenable to
• reporting to
• subordinate to

Included within

• following
• subsequent to
• comprised in
• subsidiary to
• consequent to
• inferred from
• corollary to
• belonging to
• subsumed under