1. (adv.) In twice the quantity; to twice the degree; as, doubly wise or good\; to be doubly sensible of an obligation.

2. (adv.) Deceitfully.

Janus-like ambidextrous as much again bifacial bifold biform bilateral binary binate biparous bivalent conduplicate disomatous double double-barreled double-faced doubly dual dualistic dually duple duplex duplicate dyadic geminate geminated paired second secondary twice twice as much twice over twin twinned two times two-faced two-level two-ply two-sided two-story