TI'DY, a. [from tide, time, season.]1. In its primary sense, seasonable; favorable; being in proper time; as weather fair and tidy.2. Neat; dressed with neat simplicity; as a tidy lass; the children are tidy; their dress is tidy; that is primarily, proper for the time or occasion.3. Neat; being in good order. The apartments are well furnished and tidy.