1) Eloquent 2) Expressive 3) Having a meaning or purpose 4) Having significance 5) Important 6) Meaning 7) Meaty 8) Perceptive 9) Pregnant 10) Purposeful 11) Serious and important 12) Serious, important 13) Shrewd 14) Significant 15) Substantive 16) To have a meaning or purpose Found on https://www.crosswordclues.com/clue/meaningful
adjective having a meaning or purpose; `a meaningful explanation`; `a meaningful discussion`; `a meaningful pause` Found on https://www.encyclo.co.uk/local/20974