Synonyms for Immediate (same or very similar meaning)
WordNet sense 1 (temporal sense; intermediate between past and future; now existing or happening or in consideration):
present
WordNet sense 2 (closest in degree or order (space or time) especially in a chain of causes and effects):
proximate
WordNet sense 3 (performed with little or no delay):
prompt, quick, straightaway
WordNet sense 4 (acting or moving or capable of acting or moving quickly):
fast
WordNet sense 5 (having no intervening persons, agents, conditions):
direct
WordNet sense 6 (very close or connected in space or time):
contiguous
WordNet sense 7 (at or within a short distance in space or time or having elements near each other):
close
From the ODE community, based on WordNet
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