UNRESERVED
unreserved
(adjective) not cautious or reticent; “unreserved behavior”
unreserved
(adjective) not reserved
Source: WordNet® 3.1
Etymology 1
Adjective
unreserved (not comparable)
(of a person) Not reserved, without reservations.
Not booked in advance.
Etymology 2
Verb
unreserved
simple past tense and past participle of unreserve
Anagrams
• underserve, underverse, undeserver, unreversed
Source: Wiktionary
Un`re*served", a.
Definition: Not reserved; not kept back; not withheld in part;
unrestrained.
– Un`re*serv"ed*ly, adv.
– Un`re*serv"ed*ness, n.
Source: Webster’s Unabridged Dictionary 1913 Edition