Opposite of acknowledge

Opposite of acquaintance

Opposite of action

Opposite of active

Opposite of activity

Opposite of actual

Opposite of abstinent

Opposite of abundance

Opposite of abundant

Opposite of acceptance

Opposite of accidentally

Opposite of accord

Opposite of accountable

Opposite of abject

Opposite of able

Opposite of abnormal

Opposite of abnormality

Opposite of abolish

Opposite of abstain

Opposite of abandon

Opposite of abandonment

Opposite of abate

Opposite of ability