Definitions;

motivation |ˌmōtəˈvā sh ən|
noun
the reason or reasons one has for acting or behaving in a particular way : escape can be a strong motivation for travel.
• the general desire or willingness of someone to do something : keep staff up to date and maintain interest and motivation.
DERIVATIVES
motivational |- sh ənl| |ˈmoʊdəˈveɪʃənl| |ˈmoʊdəˈveɪʃnəl| |-ˈveɪʃ(ə)n(ə)l| adjective
motivationally |- sh ənl-ē| |ˈmoʊdəˈveɪʃənli| |ˈmoʊdəˈveɪʃnəli| |-ˈveɪʃ(ə)n(ə)li| adverb
ORIGIN late 19th cent.: from motive , reinforced by motivate .

hate |hāt|
verb [ trans. ]
feel intense or passionate dislike for (someone) : the boys hate each other | he was particularly hated by the extreme right.
• have a strong aversion to (something) : he hates flying | [with infinitive ] I'd hate to live there.
• [with infinitive ] used politely to express one's regret or embarrassment at doing something : I hate to bother you.
noun
intense or passionate dislike : feelings of hate and revenge.
• [as adj. ] denoting hostile actions motivated by intense dislike or prejudice : a hate campaign.
DERIVATIVES
hatable |ˈhātəbəl| |ˈheɪdəbəl| (also hateable) adjective
hater |ˈheɪdər| noun

childish |ˈ ch īldi sh |
adjective
of, like, or appropriate to a child : childish enthusiasm.
• silly and immature : a childish outburst.
DERIVATIVES
childishly |ˈtʃaɪld1ʃli| adverb
childishness |ˈtʃaɪld1ʃn1s| noun


selfish |ˈselfi sh |
adjective
(of a person, action, or motive) lacking consideration for others; concerned chiefly with one's own personal profit or pleasure : I joined them for selfish reasons.
DERIVATIVES
selfishly |ˈsɛlf1ʃli| adverb
selfishness |ˈsɛlfɪʃn1s| noun

unoriginal |ˌənəˈrijənl|
adjective
lacking originality; derivative : an uninteresting and unoriginal essay.
DERIVATIVES
unoriginality |-ˌrijəˈnalətē| |ˈənəˈrɪdʒəˈnølədi| |-ˈnalɪti| noun
unoriginally |ˈənəˈrɪdʒənli| |ˈənəˈrɪdʒnəli| adverb


illusion |iˈloō zh ən|
noun
a false idea or belief : he had no illusions about the trouble she was in.
• a deceptive appearance or impression : the illusion of family togetherness | the tension between illusion and reality.
• a thing that is or is likely to be wrongly perceived or interpreted by the senses : Zollner's illusion makes parallel lines seem to diverge by placing them on a zigzag-striped background.
PHRASES
be under the illusion that believe mistakenly that : the world is under the illusion that the original painting still hangs in the Winter Palace.
be under no illusion (or illusions) be fully aware of the true state of affairs.
DERIVATIVES
illusional |- zh ənl| |1ˈluʒənl| |1ˈluʒnəl| adjective
ORIGIN Middle English (in the sense [deceiving, deception] ): via Old French from Latin illusio(n-), from illudere ‘to mock,’ from in- ‘against’ + ludere ‘play.’

to be continued...