chary

Short definition from Wiktionary

Adjective

1. 1
   Careful, cautious, shy, wary.
2. 2
   Excessively particular or fussy about details; fastidious.
3. 3
   Not disposed to give freely; not lavish; frugal, sparing.
4. 4
   Cared for, regarded as precious; cherished.

Adverb

1. 1
   Synonym of charily: carefully, cautiously, warily.