Synonyms of echoic
imitativePeople and animals who are imitative copy others' behaviour.
• Babies of this age are highly imitative.
onomatopoeicOnomatopoeic words sound like the noise they refer to. 'Hiss', 'buzz', and 'rat-a-tat-tat' are examples of onomatopoeic words.
• He spoke the single onomatopoeic word: `Bang'.
Thesaurus for echoic from the Collins English Thesaurus
characteristic of or resembling an echo