'Thankless' definitions:
Definition of 'thankless'
From: WordNet
adjective
Not feeling or showing gratitude; "ungrateful heirs"; "How sharper than a serpent's tooth it is / To have a thankless child!"- Shakespeare [syn: ungrateful, thankless, unthankful] [ant: grateful, thankful]
adjective
Not likely to be rewarded; "grading papers is a thankless task" [syn: thankless, unappreciated, ungratifying]
Definition of 'Thankless'
From: GCIDE
- Thankless \Thank"less\, a.
- 1. Not acknowledging favors; not expressing thankfulness; unthankful; ungrateful. [1913 Webster]
- That she may feel How sharper than a serpent's tooth it is To have a thankless child! --Shak. [1913 Webster]
- 2. Not obtaining or deserving thanks; unacceptable; as, a thankless task. [1913 Webster]
- To shepherd thankless, but by thieves that love the night allowed. --Chapman. [1913 Webster] -- {Thank"less*ly}, adv. -- {Thank"less*ness}, n. [1913 Webster]
Synonyms of 'thankless'
From: Moby Thesaurus
- bitter,
- bootless,
- careless,
- despised,
- disagreeable,
- dislikable,
- disliked,
- displeasing,
- distasteful,
- fruitless,
- futile,
- heedless,
- lowly,
- miserable,
- misprized,
- misunderstood,
- out of favor,
- profitless,
- self-centered,
- sour,
- thoughtless,
- ugly,
- unacknowledged,
- unalluring,
- unappealing,
- unappetizing,
- unappreciated,
- unappreciative,
- unattractive,
- uncared-for,
- undelectable,
- undelicious,
- undesirable,
- unengaging,
- unenjoyable,
- ungrateful,
- uninviting,
- unlamented,
- unlikable,
- unmindful,
- unmissed,
- unmourned,
- unpalatable,
- unpleasant,
- unpleasing,
- unpopular,
- unprofitable,
- unregretted,
- unrequited,
- unrewarding,
- unsavory,
- unsung,
- untasteful,
- unthankful,
- unvalued,
- unwelcome,
- useless,
- vain,
- wretched