unsubtly

adjective, sub·tler, sub·tlest.

1. thin, tenuous, or rarefied, as a fluid or an odor.
2. fine or delicate in meaning or intent; difficult to perceive or understand: subtle irony.
3. delicate or faint and mysterious: a subtle smile.
4. requiring mental acuteness, penetration, or discernment: a subtle philosophy.
5. characterized by mental acuteness or penetration: a subtle understanding.
6. cunning, wily, or crafty: a subtle liar.
7. insidious in operation: subtle poison.
8. skillful, clever, or ingenious: a subtle painter.

adjective

1. not immediately obvious or comprehensible
2. difficult to detect or analyse, often through being delicate or highly refineda subtle scent
3. showing or making or capable of showing or making fine distinctions of meaning
4. marked by or requiring mental acuteness or ingenuity; discriminating
5. delicate or fainta subtle shade
6. cunning or wilya subtle rogue
7. operating or executed in secreta subtle intrigue

adj.c.1300, sutel, soutil, in reference to things, “of thin consistency;” in reference to craftsmen, “skilled, clever,” from Old French soutil, from Latin subtilis “fine, thin, delicate, finely woven,” from sub “under” (see sub-) + -tilis, from tela “web” and texere “to weave” (see texture). The spelling with -b- reflects confusion with subtile. Most non-material senses were present by late 14c.