light as air
- featheryLight and soft-textured
- weightlessHaving no heft
- airyLight and well-ventilated
- floatingStaying atop liquid
- delicateEasily broken or harmed
wispy · gossamer · ethereal · buoyant · fluffy · billowing · drifting · cloud · breath · whisper · silk · dandelion · balloon · foam · meringue · souffle · chiffon · gauze
weight/heaviness
light as airweighty
Heavy or significant
leaden · ponderous · burdensome · like a ton of bricks · heavy
emotional/psychological burden
light as airheavy-hearted
Emotionally weighed down
burdened · weighed down · oppressed · crushed · encumbered